Zone 4 Planting Guide
A 130-day season from May 15 to September 25 opens the door to a real vegetable garden while still requiring careful variety selection for anything that pushes the frost-free limit. The anchor crops are the same as Zone 3 - garlic, fast-maturing greens, kale, perennial herbs - but the extra 40 days makes tomatoes and cucumbers genuinely viable with the right setup. The key word is setup. Full-season tomatoes need 10-12 weeks of indoor starts before the May 15 last frost date, which means seeds started in early March. Determinate varieties in the 60-70 day range are more forgiving: short-season types like Siletz and Glacier produce reliably in Zone 4 without requiring perfect timing. The ROI case for starting infrastructure - a simple LED grow light, a heat mat for germination - pays off quickly when you can start your own tomato transplants for cents each rather than paying $4-8 per started plant at the nursery. Garlic remains the highest-ROI crop in Zone 4 because it requires zero infrastructure, overwinters without attention, and the Year 2 replanting cost drops to zero when you save your own stock. The 130-day window also supports cucumbers (50-65 days from transplant) and summer squash (50-60 days), both of which produce heavily in the available season. What Zone 4 still eliminates: sweet potatoes reliably, long-season peppers, and melons without season extension. A cold frame or low tunnel adds 3-4 weeks on each end of the season, effectively pushing Zone 4 production into Zone 5 territory for the crops inside it. For gardeners willing to make that modest infrastructure investment, the calculus shifts considerably - and the payback on even a simple cold frame happens in the first season through earlier harvests and extended fall production.
Direct Sow These crops complete their season (>days to maturity) within your 130 frost-free days.
Acorn Squash
Cucurbita pepo
Adzuki Bean
Vigna angularis
Agretti
Salsola soda
Amaranth
Amaranthus cruentus
Apple Mint
Mentha suaveolens
Apricot
Prunus armeniaca
Aronia (Chokeberry)
Aronia melanocarpa
Artichoke
Cynara scolymus
Arugula
Eruca vesicaria subsp. sativa
Bee Balm
Monarda didyma
Beet
Beta vulgaris subsp. vulgaris
Bitter Melon
Momordica charantia
Black Currant
Ribes nigrum
Blackberry
Rubus allegheniensis
Blueberry
Vaccinium corymbosum
Bok Choy
Brassica rapa subsp. chinensis
Borage
Borago officinalis
Boysenberry
Rubus ursinus x idaeus
Broccoli
Brassica oleracea var. italica
Broccoli Rabe
Brassica rapa subsp. ruvo
Brussels Sprouts
Brassica oleracea var. gemmifera
Butternut Squash
Cucurbita moschata
Cabbage
Brassica oleracea var. capitata
Calendula
Calendula officinalis
Cantaloupe
Cucumis melo var. cantalupensis
Cape Gooseberry
Physalis peruviana
Carrot
Daucus carota
Catnip
Nepeta cataria
Cauliflower
Brassica oleracea var. botrytis
Celeriac
Apium graveolens var. rapaceum
Celery
Apium graveolens
Celtuce
Lactuca sativa var. angustana
Chamomile
Matricaria chamomilla
Cherry
Prunus avium
Cherry Tomato
Solanum lycopersicum var. cerasiforme
Chervil
Anthriscus cerefolium
Chestnut
Castanea spp.
Chickpea
Cicer arietinum
Chinese Broccoli
Brassica oleracea var. alboglabra
Chives
Allium schoenoprasum
Chrysanthemum Greens
Glebionis coronaria
Cilantro
Coriandrum sativum
Collard Greens
Brassica oleracea var. viridis
Corn
Zea mays
Cowpea
Vigna unguiculata
Cucumber
Cucumis sativus
Culantro
Eryngium foetidum
Currant
Ribes rubrum
Curry Leaf
Murraya koenigii
Daikon
Raphanus sativus var. longipinnatus
Dill
Anethum graveolens
Dragon Fruit
Selenicereus undatus
Edamame
Glycine max
Eggplant
Solanum melongena
Elderberry
Sambucus nigra
Endive
Cichorium endivia
Epazote
Dysphania ambrosioides
Fava Bean
Vicia faba
Fennel
Foeniculum vulgare
Fenugreek
Trigonella foenum-graecum
Garden Pea
Pisum sativum
Gooseberry
Ribes uva-crispa
Green Bean
Phaseolus vulgaris
Ground Cherry
Physalis pruinosa
Hazelnut
Corylus americana
Holy Basil
Ocimum tenuiflorum
Honeyberry
Lonicera caerulea
Hot Pepper
Capsicum annuum
Hyacinth Bean
Lablab purpureus
Kale
Brassica oleracea var. acephala
Kohlrabi
Brassica oleracea var. gongylodes
Leek
Allium ampeloprasum
Lemon Balm
Melissa officinalis
Lemon Verbena
Aloysia citrodora
Lemongrass
Cymbopogon citratus
Lettuce
Lactuca sativa
Lima Bean
Phaseolus lunatus
Loquat
Eriobotrya japonica
Lovage
Levisticum officinale
Luffa
Luffa aegyptiaca
Mâche
Valerianella locusta
Malabar Spinach
Basella alba
Marjoram
Origanum majorana
Mint
Mentha spp.
Mizuna
Brassica rapa var. nipposinica
Moringa
Moringa oleifera
Mulberry
Morus rubra
Mung Bean
Vigna radiata
Mustard Greens
Brassica juncea
Napa Cabbage
Brassica rapa subsp. pekinensis
Nasturtium
Tropaeolum majus
New Zealand Spinach
Tetragonia tetragonioides
Okra
Abelmoschus esculentus
Onion
Allium cepa
Oregano
Origanum vulgare
Parsley
Petroselinum crispum
Parsnip
Pastinaca sativa
Pawpaw
Asimina triloba
Peanut
Arachis hypogaea
Pecan
Carya illinoinensis
Peppermint
Mentha x piperita
Persimmon
Diospyros virginiana
Plum
Prunus domestica
Pole Bean
Phaseolus vulgaris (indeterminate)
Popcorn
Zea mays var. everta
Potato
Solanum tuberosum
Pumpkin
Cucurbita pepo
Purslane
Portulaca oleracea
Quinoa
Chenopodium quinoa
Radicchio
Cichorium intybus var. foliosum
Radish
Raphanus sativus
Raspberry
Rubus idaeus
Romanesco
Brassica oleracea var. botrytis
Runner Bean
Phaseolus coccineus
Rutabaga
Brassica napus var. napobrassica
Saffron
Crocus sativus
Sage
Salvia officinalis
Scallion
Allium fistulosum
Sea Buckthorn
Hippophae rhamnoides
Serviceberry
Amelanchier alnifolia
Shallot
Allium cepa var. aggregatum
Shiso
Perilla frutescens
Snap Pea
Pisum sativum var. macrocarpon
Sorrel
Rumex acetosa
Soybean
Glycine max
Spaghetti Squash
Cucurbita pepo
Spearmint
Mentha spicata
Spinach
Spinacia oleracea
Stevia
Stevia rebaudiana
Strawberry
Fragaria × ananassa
Summer Savory
Satureja hortensis
Sunflower
Helianthus annuus
Sweet Basil
Ocimum basilicum
Sweet Pepper
Capsicum annuum
Sweet Potato
Ipomoea batatas
Swiss Chard
Beta vulgaris var. cicla
Tarragon
Artemisia dracunculus var. sativa
Tatsoi
Brassica rapa var. narinosa
Tepary Bean
Phaseolus acutifolius
Thai Basil
Ocimum basilicum var. thyrsiflora
Tomatillo
Physalis philadelphica
Tomato
Solanum lycopersicum
Turnip
Brassica rapa subsp. rapa
Vietnamese Coriander
Persicaria odorata
Water Spinach
Ipomoea aquatica
Watercress
Nasturtium officinale
Watermelon
Citrullus lanatus
Winter Savory
Satureja montana
Winter Squash
Cucurbita maxima
Yardlong Bean
Vigna unguiculata subsp. sesquipedalis
Start Indoors Start these 6-8 weeks before May 15 to complete the growing season before first frost.
Cardoon
Cynara cardunculus var. altilis
Chayote
Sechium edule
Fig
Ficus carica
Goji Berry
Lycium barbarum
Hops
Humulus lupulus
Jerusalem Artichoke
Helianthus tuberosus
Salsify
Tragopogon porrifolius
Scorzonera
Scorzonera hispanica
Marginal Season is tight. Use a greenhouse, row cover, or high tunnel to extend your window.
Grape
Vitis vinifera
Lavender
Lavandula angustifolia
Pigeon Pea
Cajanus cajan
Thyme
Thymus vulgaris