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Rel. frost
Last spring frost (0°C) 19 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 215 days 19 Apr – 20 Nov
Probability that frost is over

75% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
31 Mar – 14 Apr
5-7 wk
19 May
5 wk after
15 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
25 Mar – 8 Apr
4-6 wk
6 May
3 wk after
15 Apr
1 wk before
Chili pepper
Capsicum annuum
Fleece
22 Mar – 19 Apr
8-12 wk
14 Jun
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Feb
5-7 wk
26 Mar
4 wk before
11 Apr
2 wk before
Cucumber
Cucumis sativus
Fleece
17 – 24 May
3-4 wk
14 Jun
8 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
4-5 wk
14 Jun
8 wk after
15 May
4 wk after
Butter bean
Phaseolus lunatus
Greenhouse
2 – 9 May
3-4 wk
30 May
6 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
2 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 May
2 wk after
Sweetcorn
Zea mays
Fleece
7 – 14 May
3-4 wk
4 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
21 – 28 Apr
3-4 wk
19 May
5 wk after
2 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Feb
5-7 wk
26 Mar
4 wk before
11 Apr
2 wk before
Potato
Solanum tuberosum
25 Apr – 9 May
4-6 wk
6 Jun
8 wk after
27 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Feb
5-7 wk
26 Mar
4 wk before
15 Apr
1 wk before
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
3-4 wk
14 Jun
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
21 – 28 Apr
3-4 wk
19 May
5 wk after
2 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Mar – 8 Apr
4-6 wk
6 May
3 wk after
Lettuce
Lactuca sativa
15 – 22 Mar
3-4 wk
12 Apr
1 wk before
15 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
1 – 15 Mar
4-6 wk
12 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 Mar
2-4 wk
4 Apr
3 wk before
11 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
15 Apr
1 wk before
Spinach
Spinacia oleracea
7 – 14 Mar
3-4 wk
4 Apr
3 wk before
6 Apr
3 wk before
Sweet potato
Ipomoea batatas
7 – 21 May
4-6 wk
18 Jun
11 wk after
Tomato
Solanum lycopersicum
11 – 25 Apr
6-8 wk
6 Jun
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
9 – 23 May
2-4 wk
6 Jun
8 wk after
30 May
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Mar – 8 Apr
4-6 wk
6 May
3 wk after
Pea
Pisum sativum
7 – 14 Mar
3-4 wk
4 Apr
3 wk before
15 Apr
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
23 Apr – 7 May
4-6 wk
4 Jun
7 wk after
Lemon balm
Melissa officinalis
8 – 22 Feb
8-10 wk
19 Apr
Vid frost
14 May
4 wk after
Dill
Anethum graveolens
15 Apr
1 wk before
Chives
Allium schoenoprasum
29 Jan – 12 Feb
6-8 wk
26 Mar
4 wk before
15 Apr
1 wk before
Spearmint
Mentha spicata
10 Jan – 7 Feb
8-12 wk
4 Apr
3 wk before
14 May
4 wk after
Coriander
Coriandrum sativum
2 May
2 wk after
Sage
Salvia officinalis
10 – 24 Mar
8-10 wk
19 May
5 wk after
Thyme
Thymus vulgaris
25 Feb – 11 Mar
8-10 wk
6 May
3 wk after
Oregano
Origanum vulgare
28 Feb – 14 Mar
6-8 wk
25 Apr
1 wk after
14 May
4 wk after
Parsley
Petroselinum crispum
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
15 Apr
1 wk before
Rosemary
Salvia rosmarinus
10 Feb – 10 Mar
10-14 wk
19 May
5 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Greenhouse
17 – 24 May
3-4 wk
14 Jun
8 wk after
Cornflower
Centaurea cyanus
4 Apr
3 wk before
15 Apr
1 wk before
Statice
Limonium sinuatum
28 Mar – 11 Apr
8-10 wk
6 Jun
8 wk after
Sweet William
Dianthus barbatus
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
27 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Apr
6-8 wk
6 Jun
8 wk after
29 Jun
11 wk after
Dahlia
Dahlia × pinnata
6 – 20 Apr
6-8 wk
1 Jun
7 wk after
Dahlia (tubers)
Dahlia × pinnata
6 Apr – 4 May
4-8 wk
1 Jun
7 wk after
14 May
4 wk after
Foxglove
Digitalis purpurea
24 Jan – 7 Feb
8-10 wk
4 Apr
3 wk before
2 May
2 wk after
Busy lizzie
Impatiens walleriana
22 Mar – 19 Apr
8-12 wk
14 Jun
10 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
6-8 wk
6 Jun
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
8 wk after
Chinese lantern
Physalis alkekengi
10 – 24 Mar
8-10 wk
19 May
5 wk after
Love in a mist
Nigella damascena
15 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
6-8 wk
30 May
6 wk after
4 Jun
7 wk after
Tall verbena
Verbena bonariensis
24 Feb – 24 Mar
8-12 wk
19 May
5 wk after
Cardoon
Cynara cardunculus
Greenhouse
20 Feb – 20 Mar
8-12 wk
15 May
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
8-12 wk
30 May
6 wk after
Globe amaranth
Gomphrena globosa
Fleece
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
Corn poppy
Papaver rhoeas
15 Apr
1 wk before
Snapdragon
Antirrhinum majus
18 Jan – 15 Feb
8-12 wk
12 Apr
1 wk before
27 Apr
1 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
8-10 wk
14 Jun
8 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Feb
5-8 wk
4 Apr
3 wk before
Stock
Matthiola incana
15 Feb – 1 Mar
6-8 wk
12 Apr
1 wk before
2 May
2 wk after
Wormwood
Artemisia absinthium
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
2 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
3 – 17 May
4-6 wk
14 Jun
8 wk after
Pansy
Viola × wittrockiana
15 – 29 Jan
8-10 wk
26 Mar
4 wk before
27 Apr
1 wk after
Petunia
Petunia
Fleece
7 Mar – 4 Apr
8-12 wk
30 May
6 wk after
Scabious
Scabiosa atropurpurea
24 Mar – 7 Apr
6-8 wk
19 May
5 wk after
30 May
6 wk after
Zinnia
Zinnia elegans
25 Apr – 9 May
4-6 wk
6 Jun
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
10 – 24 May
3-5 wk
14 Jun
8 wk after
Cosmos
Cosmos bipinnatus
25 Apr – 9 May
4-6 wk
6 Jun
8 wk after
30 May
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
8-12 wk
14 Jun
8 wk after
Bee balm
Monarda didyma
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
14 May
4 wk after
Yarrow
Achillea millefolium
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
2 May
2 wk after
Safflower
Carthamus tinctorius
4 Apr
3 wk before
15 Apr
1 wk before
Iceland poppy
Papaver nudicaule
29 Jan – 12 Feb
6-8 wk
26 Mar
4 wk before
11 Apr
2 wk before
Bishop's flower
Ammi majus
19 Mar – 2 Apr
4-6 wk
30 Apr
2 wk after
2 May
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
10-12 wk
30 May
6 wk after
Sunflower
Helianthus annuus
Fleece
2 – 9 May
3-4 wk
30 May
6 wk after
2 May
2 wk after
China aster
Callistephus chinensis
Fleece
4 – 18 Apr
6-8 wk
30 May
6 wk after
15 May
4 wk after
Annual phlox
Phlox drummondii
30 Mar – 13 Apr
6-8 wk
25 May
6 wk after
30 May
6 wk after
Hollyhock
Alcea rosea
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
2 May
2 wk after
Delphinium
Delphinium elatum
11 Feb – 11 Mar
8-12 wk
6 May
3 wk after
14 May
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
6-8 wk
6 Jun
8 wk after
Black-eyed Susan
Rudbeckia hirta
24 Mar – 7 Apr
6-8 wk
19 May
5 wk after
30 May
6 wk after
Woodland sage
Salvia nemorosa
14 – 28 Feb
8-10 wk
25 Apr
1 wk after
14 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
5 Apr – 3 May
6-10 wk
14 Jun
8 wk after
California goldenpoppy
Eschscholzia californica
15 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
8-10 wk
6 Jun
8 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
2 May
2 wk after
Current date Soon Date passed