This material is adapted from these web pages and books:

See also this beautiful planting chart from the laboratoire sur l’agriculture urbaine de l’UQAM.

Some additions and changes have been made to the material gleaned from the above sources. You can click on a column header to sort the information according to the information in that column.

Vegetables Indoor seeding Outdoor seeding Outdoor transplanting Days to maturity Harvest Companion plants Comments Anne's experience
Calendula (Pot Marigold)
Calendula officinalis
mid-Apr mid-May mid-May Originally Suttons "Porcupine" (orange) and Richter's (yellow), now mixed. "Porcupine" was beautiful and tough (2013). Try side deck box.
Pumpkin
Cucurbita pepo "Howden"
early May mid-May early June 115 September to October Lettuce, corn, pea, radish Place 3 seeds per seed hole. Keep 2 to 4 fruits per plant. A garden gorilla for sure. Only 2 fruit in 2013. Climbs the sunflowers and pulls them down.
Potatoes, Sweet
Ipomea batatas
early April (start slips) late May 100 to 140 September Grow from slips. Are the decorative ones edible?
Lettuce (Head)
Lactuca sativa "Buttercrunch"
mid-April May, August late May 65 May to September Garlic, beet, brocoli, carrot, celery, celeriac, cabbage, cucumber, spinach, onion, radish Bolt easily
Lettuce (Head)
Lactuca sativa "Ithaca" (Iceberg type)
mid-April May, August late May 65 May to September Garlic, beet, brocoli, carrot, celery, celeriac, cabbage, cucumber, spinach, onion, radish Bolt easily
Beans (pole)
Phaseolus vulgaris "Kentucky Wonder"
late May to late June 60 Late July to late September Carrot, corn, pea, radish Support with bamboo, wires, netting or trellis. Can be eaten fresh or as shell beans. Can't remember
Carrots
Daucus carota "Mini Bonbon"
mid-May 60 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15. Can't remember, probably unremarkable.
Parsley (Double Curled)
Petroselinum crispum crispum
early March early May early May July to September Asparagus, corn, pepper, tomato Refrigerate or freeze seeds overnight to speed germination. Can be brought indoors for winter. Can be hard to germinate, but when it works, it really works. Protect from rabbits.
Pepper (Sweet)
Capsicum annuum "Cal Wonder"
early Feb early June 75 mid-July to August Eggplant, carrot, onion, pea, tomato Originally Richter's. Collected seeds failed to germinate at all (2014 for 2012-collected seeds). Bought plants from Jasmin 2015; squirrels ate them.
Kale
Brassica oleracea acephala "Walking Stick" (Jersey Cabbage)
early April late May to June 180 June to October Bush bean, beet, celery, cucumber, lettuce, onion, potato Tolerates frost. Didn't get very tall, but produced well (2013).
Jerusalem artichokes
Helianthus tuberosus
Late August to October. Grown from tubers; said to be very invasive. Should be decorative. Did not do well in flower box near stairs. Did okay with horseradhish.
Cardoon
Cynara cardunculus "Large Smooth"
mid-March mid-May Sep - Oct Needs lots of sun. Prone to aphids; spray with detergent. Dramatic at end of season
Pepper (Hot)
Capsicum annuum "Tabasco"
early Feb early June 60 mid-July to August Eggplant, carrot, onion, pea, tomato 2015: sow 3 weeks earlier next year, i.e. early Feb Easy, good production. Seeds have short life.
Basil (green)
Ocimum basilicum "Sweet Genovese"
late March to early April mid-May late June to September tomato Likes warmth and sunshine. Pinch flower buds to keep plant bushy. Easy and delicious; freezes very well. Make sure it gets light.
Coriander, aka Cilantro
Coriandrum sativum
mid-May to August For leaves, harvest plant at 8 inches. For seeds, wait. Easy and prolific; many "volunteers". Freezes very well.
Sage
Salvia officinalis
mid March May Perennial, decorative. Prefers cool weather; shade lightly in hot weather. Edging for under cedars?
Raspberries
Rubus Idaeobatus "Boyne"
Fruits on second year canes; remove old canes after fruiting Excellent.
Marigold
Tagetes patula
mid March May May tomatoes To keep insects off tomatoes, and make nice border. Excellent: tough and easy.
Spinach
Spinacea oleracea "Amazon" (F1)
April - May, then August 4-6 weeks July Cabbage, lettuce, leek, radish Seed early in spring or at the end of summer, otherwise it risks bolting to seed. Excellent experience with late (mid-Aug) sowing and harvest. Needs cool weather.
Egyptian (walking) onion
Allium × proliferum
April: use leaves, starting early spring Bulbs too fibrous for eating, hard to peel. Extremely tough plant, propagates well.
Beets
Beta vulgaris "Harrier hybrid"
mid-April 50 mid-July to September Garlic, cabbage, kohlrabi, bean, lettuce, corn, onion, leek, radish If sowing outdoors, repeat every 2 weeks until last frost. Thin clusters. Fantastic taste, good production. Do several plantings.
Marjoram
Marjorana hortensis (or Origanum majorana)
mid-April mid-May mid-May Cabbage, broccoli, Brussels sprouts No frost tolerance. Can be taken indoors for winter. Freezes very well.
Radishes (Daikon)
Raphanus sativus var. longipinnatus "April Cross"
April (as soon as soil can be worked), May, then August 55 Prefers cool weather. Germination almost immediate
Beans (Borlotto)
Phaseolus vulgaris
late May to mid-July 50 mid-July to last September Eggplant, Swiss chard, beet, carrot, celery, celeriac, cabbage, cucumber, corn, pea, potato, radish, tomato Shell bean Good.
Carrots
Daucus carota "Amsterdam"
mid-May 60 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15. Good.
Lemon Verbena
Aloysia triphylla
Fantastic in tea. Good.
Basil, Holy
Ocimum tenuiflorum (Green)
late March to early April mid-May Grew well enough, but not that useful to us.
Broccoli
Brassica oleraceae
mid-April May 40 July Celery, onion, potato After the harvest, keep the plants for a secondary crop. Hasn't grown large at all.
Cucumber
Cucumis sativus
early May late May early June 60 late July to late August Celery, kohlrabi, cabbage, bean, lettuce, corn, onion, pea, radish, tomato Outdoor seeding works fine Lebanese okay. "lemon" very good climber. Regular (my seeds) very good and productive. Do not allow other plants to shade.
Red onions
Allium cepa
April (as soon as soil can be worked) 100 August Swiss chard, beet, brocoli, carrot, celery, kohlrabi, cabbage, cucumber, lettuce, pepper, leek, tomato Flatten stalks to the ground at the end of August. Need more sun than I'm giving them.
Chives
Allium schoenoprasum
March mid-May early May May to September Carrot, tomato Should be perennial if given good spot. Could be attractive edging. Need to try again.
Rutabaga
Brassica napobrassica
mid-May 90 mid-August Pea Pick when roots are 6 to 10 cm in diameter. Never tried
Chinese cabbage (Bok choy)
Brassica rapa chinensis
early April late June to early July for Fall crop early June 100 October Garlic, Swiss chard, beet, carrot, celery, cucumber, spinach, bean, lettuce, onion, potato Sensitive to transplanting; do not damage roots. Never tried.
Leeks
Allium porrum "Large Musselburg"
Feb - March Apr - June early May 90 August Beet, carrot, celery, celeriac, spinach, onion Shore up regularly. Never tried.
Lettuce (Miner's), aka Clayonia
early April to late May and late August May to September May be growable in winter in cold frame. Prefers cool weather. Blossoms are edible as well as leaves Never tried.
Potatoes
mid-May 100 August Garlic, eggplant, cabbage, bean, corn, pea Hoe and shore up regularly. Pick when leaves are dry. Never tried.
Watermelon
Citrullus vulgaris
mid- to late May early June Never tried.
Mint (Mojito)
Mentha × villosa
Did not survive indoors for winter Nice plant.
Good King Henry
Chenopodium bonus-henricus
Cover seeds lightly or just water in; germination erratic. No germination (indoors 2014).
Cosmos/Kenikir
Cosmos sulphureus
late April late May late May Indonesian favourite with a strong, pungent scent and flavour. Young shoots are eaten raw, mixed with coconut, or cooked with other greens. Bright yellow flowers. Height 75cm/30in. No germination that I could find.
Andrographis
Andrographis paniculata
Apr May Nordic cold remedy. No germination when sown indoors 2013.
Eggplant
Solanum melongena
late March early June 70 August Bean, sweet pepper, pea, potato Leave 4 to 5 fruits per plant.
Pick when the skin is shiny.
No luck.
Artichoke
Cynara cardunculus "Large Green Globe"
February late March (cold frame) Sunflower, tarragon At 6 weeks, expose to cold for 4-6 weeks, but avoid frost. No luck yet getting edible buds; try wintering in cold frame.
Chamomile (German)
Matricaria recutita "Bodegold"
Apr mid-May May Do not disturb roots. No significant harvest 2013; retry.
Tomato
Solanum lycopersicum "San Marzano"
early March late May 70 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish Paste tomato. OUT OF SEED. Not bad
Soybeans (Edamame)
Glycine max
May Not bad.
Peas
Pisum sativum "Miragreen"
mid-April 68 late July to late August Eggplant, carrot, cucumber, pumpkin, spinach, bean, corn, turnip (summer), pepper, potato, radish Seed every 15 days from the start of May until June 15. Support with a chicken wire, net or trellis. NOTE: also collected seed 2014.
Blueberry
Vaccinium (several species)
Need more than one for pollination Not good, needs more sun
Beans (Kidney)
Phaseolus vulgaris "Dark Red Kidney"
late May to mid-July 50 mid-July to last September Eggplant, Swiss chard, beet, carrot, celery, celeriac, cabbage, cucumber, corn, pea, potato, radish, tomato Shell bean. Also collected seeds OK
Celeriac
Apium graveolens rapaceum
mid-March mid- to late May 110 September or later (after light frost) Bean, lettuce, leek During winter, take one indoors in damp sand, sunny location, fore fresh stalks. Okay.
Turnips (summer)
Brassica rapa
late May 50 July Pea Okay. Do not start too soon, and thin aggressively.
Fiddleheads (Ostrich fern)
Matteuccia struthiopteris
May Harvest only a small number of heads Only tiny amount harvested so far.
Horseradish
Ammoracia rusticana
September to October. Perennial, grown from root cuttings. Packs a real punch! Plant very vigorous, does well even in moderate shade.
Brussels sprouts
Brassica oleracea gemmifera
mid-April mid to late May 100 August Garlic, Swiss chard, beet, carrot, celery, cucumber, spinach, bean, lettuce, onion, potato Gradually remove leaves to favour growth of the head. Pinch plant extremities, at the end of August. Pea sized!
Lettuce (Head)
Lactuca sativa "Iceberg"
mid-April May, August late May 65 May to September Garlic, beet, brocoli, carrot, celery, celeriac, cabbage, cucumber, spinach, onion, radish Poor. No germination.
Corn
Zea mays "Kernel Sweet"
mid-May 78 Late August to September Beet, cucumber, pumpkin, bean, melon, pea, potato Seed at least two rows to favor pollination. Poor germination, no production. Possibly attacked by cutworm
Dill
Anethum graveolens
early April to July Poor companion to many plants Seed every 3-4 weeks. Attracts beneficial insects; interplant freely in the garden except near carrots. Popular with slugs. Freezes very well.
Cucamelon
Cucamelon
mid April mid May 9-12 weeks Grape-sized watermelons that taste like cuke+lime. Bring in root for winter. Pretty and entertaining, but not interesting to eat (2013).
Swiss chard
Beta vulgaris subsp. cicla "Bright Yellow"
mid-April mid-May mid-May 57 July Cabbage, bean, onion Continuous crop on the plants. Pretty but we won't eat it.
Nasturtium (climbing)
Nasturtium
April Nice ground cover with sunflowers; good fence cover. Produces a lot of biomass fast! All parts are edible.
Kohlrabi
mid-April and mid-June 50 July Beet, cucumber, onion Prefers cool weather; plant early or late. Seeds are expensive and plant is finicky.
Stevia
Stevia rebaudiana
Bring indoors for winter Skip. Planted 2013-06-02, indoors for winter, did not survive well.
Cabbage
Brassica oleracea capitata "Stonehead"
mid-April May 50 July to September Garlic, Swiss chard, beet, carrot, celery, cucumber, spinach, bean, lettuce, onion, potato Slug food! Try copper blocker.
Onions
Allium cepa
early March early May 100 August Swiss chard, beet, brocoli, carrot, celery, kohlrabi, cabbage, cucumber, lettuce, pepper, leek, tomato Flatten stalks to the ground at the end of August. Some success now that soil has improved. Need lots of sun.
Echinacea
Echinacea purpurea
Would be nice to have more colours. Tough and easy. Can be divided.
Lemon Balm
Melissa officinalis
Tough and productive, very good in tea.
Carrots
Daucus carota "Nantes 2 Mars"
mid-May 60 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15. Unremarkable.
Beans (pole)
Phaseolus vulgaris "Blue Lake"
late May to late June 60 Late July to late September Carrot, corn, pea, radish Support with bamboo, wires, netting or trellis. Can be eaten fresh or as shell beans. Very good, several harvests.
Tomato
Solanum lycopersicum "Black Plum"
early March late May 70 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish Are these the ones susceptible to blossom end rot? Very good.
Oregano
Origanum vulgare
early March early May mid-May May to September Can have two harvests by shearing at 2 inches in early July. Very hardy perennial; slightly invasive. Freezes very well.
Rosemary
Rosmarinus officinalis
Doesn't survive winter even indoors, treat as annual. Hard to germinate, 1-12 mo, needs vernalization. Very nice, but just buy plants.
Mustard (White)
Brassica hirta
Very quick to germinate, grow, and flower.
Sunflower
Helianthus "American Giant"
early April late April 70 Very tall, quite strong, big and yellow.
Garlic (Fall-planted)
Allium sativum
October August to September Beet, celery, cabbage, lettuce, potato, tomato Cool the soil with interplantings of beets or lettuce. Works.
Radishes
Raphanus sativus "Violet de Gournay"
May to June 30? June to July Beet, carrot, pumpkin, cucumber, spinach, bean, lettuce, parsnip, pea Seed early in spring or at the end of summer, otherwise it risks bolting to seed. Young: too strong and firbous. Old: huge!!! Can use shredded and pickled.
Carrots
Daucus carota "Samurai"
mid-May 60 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15.
Tomato
Solanum lycopersicum "Pineapple"
early March late May 75-95 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Carrots
Daucus carota "Purple Haze" (F1)
April (as soon as soil can be worked) 60-65 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15.
Asparagus
Asparagus officinalis "Jersey Supreme"
mid-March late April Basil, calendula, parsley, tomato Perennial.
Carrots
Daucus carota "Tenderlong Imperator"
mid-May 65-80 mid-July to September Cabbage, bean, lettuce, onion, pepper, leek, pea, radish, salsify, tomato Seed every 15 days from beginning of May until June 15.
Coriander, aka Cilantro
Coriandrum sativum "Genesis"
mid-May to August 50-55 For leaves, harvest plant at 8 inches. For seeds, wait.
Lettuce (Head)
Lactuca sativa "???"
mid-April May, August late May 65 May to September Garlic, beet, brocoli, carrot, celery, celeriac, cabbage, cucumber, spinach, onion, radish
Scallions (bunching onions)
Allium "Parade"
April (as soon as soil can be worked) 70 July
Kale
Brassica oleracea "Red Ursa"
early April late May to June 60 June to October Bush bean, beet, celery, cucumber, lettuce, onion, potato Tolerates frost.
Sunflower
Helianthus "Kong", "A.Giant", hybrids?
early April early May 90
Cauliflower
Brassica oleracea botrytis "Violet Queen" (F1)
late March late May 55 September Garlic, Swiss chard, beet, carrot, celery, cucumber, spinach, bean, lettuce, onion, potato
Mâche (Corn Salad / Lamb's Lettuce)
Valerianella locusta "Verte à coeur plein"
Jul - Oct
Pepper (Hot)
Capsicum annuum "Cayenne"
early Feb early June 60 mid-July to August Eggplant, carrot, onion, pea, tomato 2015: sow 3 weeks earlier next year, i.e. early Feb
Tomato
Solanum lycopersicum "Watermelon Beefsteak"
early March late May 75-95 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Chinese cabbage (Napa)
Brassica ??? "China Express"
early April early June Garlic, Swiss chard, beet, carrot, celery, cucumber, spinach, bean, lettuce, onion, potato
Kale
Brassica oleracea acephala "Lacinato"
early April late May to June 60 June to October Bush bean, beet, celery, cucumber, lettuce, onion, potato Tolerates frost.
Beans (asparagus)
Vigna unguiculata "Red Pod"
late April late May 75 Carrot, corn, pea, radish Tolerates hot weather. Originally Richter\s.
Spinach
Spinacea oleracea "Lazio"
April - May, then August 50 July Cabbage, lettuce, leek, radish Seed early in spring or at the end of summer, otherwise it risks bolting to seed.
Tomato
Solanum lycopersicum "Black Cherry"
early March late May 70 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Spinach
Spinacea oleracea "Bloomsdale Longstanding"
April - May, then August 42 July Cabbage, lettuce, leek, radish Seed early in spring or at the end of summer, otherwise it risks bolting to seed.
Thyme (English)
Thymus vulgaris
May
Pepper (Sweet)
Capsicum annuum "Wisonsin Lakes"
early Feb early June 75-85 mid-July to August Eggplant, carrot, onion, pea, tomato
Lettuce (red leaf)
Lactuca sativa var. crispa "Lollo Rosa"
mid-April May, August late May 55 May to September Garlic, beet, brocoli, carrot, celery, celeriac, cabbage, cucumber, spinach, onion, radish
Tomato
Solanum lycopersicum "Japanese Black Trifele"
early March late May 100 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Snow Peas
Pisum sativum(???) "Snowflake"
mid-April Eggplant, carrot, cucumber, pumpkin, spinach, bean, corn, turnip (summer), pepper, potato, radish
Haskap (Honeyberry)
Lonicera caerulea (several varieties)
Need more than type one for pollination
Coriander, aka Cilantro
Coriandrum sativum "Santo"
mid-May to August For leaves, harvest plant at 8 inches. For seeds, wait.
Kale
Brassica oleracea "Dwarf Blue Scotch"
early April late May to June 60 June to October Bush bean, beet, celery, cucumber, lettuce, onion, potato Tolerates frost.
Pepper (Paprika)
Capsicum annuum "Black Hungarian"
early Feb early June 60 mid-July to August Eggplant, carrot, onion, pea, tomato 2015: sow 3 weeks earlier next year, i.e. early Feb
Strawberries
Fragaria × ananassa
June
Sunflower
Helianthus "Kong"
early April early May 90
Beets
Beta vulgaris "Bull's Blood"
mid-April 58 mid-July to September Garlic, cabbage, kohlrabi, bean, lettuce, corn, onion, leek, radish If sowing outdoors, repeat every 2 weeks until last frost. Thin clusters.
Mint (Peppermint, Spearmint)
Mentha × piperita, Mentha spicata
Parsnip
Pastinaca sativa "Albion"
April (as soon as soil can be worked) 110-120 September to October radish Can be left in the ground all winter for a spring harvest.
Tomato
Solanum lycopersicum "Beam's Yellow Pear"
early March late May 70-80 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Basil (red)
Ocimum basilicum "Red Rubin"
late March to early April mid-May late June to September tomato
Tomato
Solanum lycopersicum "Hungarian Heart"
early March late May 70 mid-August Garlic, carrot, celery, cucumber, bean, onion, pepper, radish
Pepper (Hot)
Capsicum annuum "Anaheim"
early Feb early June 60 mid-July to August Eggplant, carrot, onion, pea, tomato 2015: sow 3 weeks earlier next year, i.e. early Feb
Turmeric
Curcuma longa
Needs heat (20-30°C) and water; harvest annually and propagate from rhizomes
Borage
Borago officinalis
early May
Cucumber
Cucumis sativus "Russian Pickling"
early May late May early June 50-55 late July to late August Celery, kohlrabi, cabbage, bean, lettuce, corn, onion, pea, radish, tomato
Amaranth
Amaranthus cruentus "Opopeo"
Feb - Mar early May mid-May 60-65 Leaves and seeds edible
Celery
Apium graveolens "Tango"
mid-March mid- to late May 80 August Garlic, broccoli, cabbage, cucumber, bean, lettuce, onion, leek, tomato Shore the foot to blanch, two weeks before harvesting. Will continue to grow in pot in root cellar if kept watered.
Cranberry
Vaccinium (several sp.)
Zucchini
Cucurbita pepo "Golden Dawn III" Hybrid
mid-May, July 45 Pick at 7-8 inches