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Rel. frost
Last spring frost (0°C) 4 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 286 days 4 Feb – 17 Nov
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
17 – 31 Dec
22 Jun
5-7 wk
4 Feb
27 Jul
0 wk
29 Jan
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Dec – 7 Jan
4 Jul
4-6 wk
4 Feb
1 Aug
0 wk
29 Jan
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
6 Dec – 3 Jan
17 Apr
8-12 wk
28 Feb
12 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
17 – 31 Dec
17 Jun
5-7 wk
4 Feb
22 Jul
0 wk
20 Dec
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
26 Feb – 5 Mar
16 Apr
3-4 wk
26 Mar
7 May
7 wk after
Florence Fennel
Foeniculum vulgare
19 – 26 Feb
14 Jun
4-5 wk
26 Mar
12 Jul
7 wk after
17 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
28 Mar – 4 Apr
12 May
3-4 wk
25 Apr
2 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
12 Nov – 10 Dec
7 Apr
8-12 wk
4 Feb
2 Jun
0 wk
17 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
29 Jan
22 Jun
1 wk before
29 Jan
12 Jun
1 wk before
Maize
Zea mays
14 – 21 Feb
6 Apr
3-4 wk
14 Mar
27 Apr
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 Jan
11 Jul
3-4 wk
6 Feb
1 Aug
0 wk
17 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Feb
12 Jul
0 wk
22 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
17 – 31 Dec
17 Jun
5-7 wk
4 Feb
22 Jul
0 wk
20 Dec
12 Jul
7 wk before
Potato
Solanum tuberosum
29 Dec – 12 Jan
14 Jun
4-6 wk
9 Feb
12 Jul
1 wk after
9 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 – 31 Dec
27 Jun
5-7 wk
4 Feb
1 Aug
0 wk
29 Jan
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
26 Feb – 5 Mar
16 Jun
3-4 wk
26 Mar
7 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 Jan
3 Jul
3-4 wk
6 Feb
24 Jul
0 wk
17 Feb
14 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
24 Dec – 7 Jan
29 Jun
4-6 wk
4 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 Jan
16 Jul
3-4 wk
4 Feb
6 Aug
0 wk
29 Jan
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
24 Dec – 7 Jan
29 Jun
4-6 wk
4 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Dec – 8 Jan
8 Jun
2-4 wk
22 Jan
22 Jun
2 wk before
22 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
29 Jan
22 Jun
1 wk before
29 Jan
12 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 Jan
31 Jul
3-4 wk
4 Feb
21 Aug
0 wk
15 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
8 – 22 Mar
4-6 wk
19 Apr
11 wk after
Garden tomato
Solanum lycopersicum
17 – 31 Jan
16 Mar
6-8 wk
14 Mar
27 Apr
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
14 – 28 Feb
18 Jun
2-4 wk
14 Mar
2 Jul
5 wk after
17 Mar
22 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
24 Dec – 7 Jan
29 Jun
4-6 wk
4 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 Jan
1 Jul
3-4 wk
4 Feb
22 Jul
0 wk
29 Jan
12 Jul
1 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
12 – 26 Feb
25 May
4-6 wk
26 Mar
22 Jun
7 wk after
Lemon balm
Melissa officinalis
26 Nov – 10 Dec
27 May
8-10 wk
4 Feb
22 Jul
0 wk
2 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
29 Jan
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
10 – 24 Dec
10 Jun
6-8 wk
4 Feb
22 Jul
0 wk
1 Jan
12 Jul
5 wk before
Spearmint
Mentha spicata
12 Nov – 10 Dec
27 May
8-12 wk
4 Feb
22 Jul
0 wk
2 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
4 Feb
21 Aug
0 wk
17 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
26 Nov – 10 Dec
12 May
8-10 wk
4 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
26 Nov – 10 Dec
17 May
8-10 wk
4 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Dec
31 May
6-8 wk
4 Feb
12 Jul
0 wk
2 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
10 – 24 Dec
31 May
6-8 wk
4 Feb
12 Jul
0 wk
29 Jan
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
31 Oct – 28 Nov
13 Apr
10-14 wk
6 Feb
22 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
26 Feb – 5 Mar
1 Jun
3-4 wk
26 Mar
22 Jun
7 wk after
Cornflower
Centaurea cyanus
4 Feb
22 Jul
0 wk
29 Jan
12 Jul
1 wk before
Statice
Limonium sinuatum
3 – 17 Jan
12 May
8-10 wk
14 Mar
7 Jul
5 wk after
Sweet William
Dianthus barbatus
10 – 24 Dec
6-8 wk
4 Feb
0 wk
9 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 – 31 Jan
26 May
6-8 wk
14 Mar
7 Jul
5 wk after
19 Apr
27 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Jan
29 May
6-8 wk
7 Mar
10 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 Jan – 2 Feb
12 Jun
4-8 wk
2 Mar
10 Jul
4 wk after
2 Mar
30 Jun
4 wk after
Foxglove
Digitalis purpurea
26 Nov – 10 Dec
8-10 wk
4 Feb
0 wk
17 Feb
2 wk after
Busy lizzie
Impatiens walleriana
1 – 29 Jan
28 Jun
8-12 wk
26 Mar
23 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
17 – 31 Jan
5 Jun
6-8 wk
14 Mar
17 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
12 – 26 Feb
25 Apr
4-6 wk
26 Mar
23 May
7 wk after
Chinese lantern
Physalis alkekengi
28 Nov – 12 Dec
27 Apr
8-10 wk
6 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
4 Feb
7 Jul
0 wk
29 Jan
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
17 – 31 Jan
16 May
6-8 wk
14 Mar
27 Jun
5 wk after
19 Apr
17 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
14 Nov – 12 Dec
27 Apr
8-12 wk
6 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
20 Dec – 17 Jan
28 Mar
8-12 wk
14 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
1 – 29 Jan
17 Apr
8-12 wk
26 Mar
12 Jun
7 wk after
Globe amaranth
Gomphrena globosa
29 Jan – 12 Feb
1 May
6-8 wk
26 Mar
12 Jun
7 wk after
Corn poppy
Papaver rhoeas
4 Feb
22 Jul
0 wk
29 Jan
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
12 Nov – 10 Dec
17 May
8-12 wk
4 Feb
12 Jul
0 wk
9 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
15 – 29 Jan
22 May
8-10 wk
26 Mar
17 Jul
7 wk after
Sweet pea
Lathyrus odoratus
10 – 31 Dec
7 Jun
5-8 wk
4 Feb
12 Jul
0 wk
Stock
Matthiola incana
10 – 24 Dec
10 Jun
6-8 wk
4 Feb
22 Jul
0 wk
17 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
10 – 24 Dec
11 May
6-8 wk
4 Feb
22 Jun
0 wk
22 Jan
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
12 – 26 Feb
10 May
4-6 wk
26 Mar
7 Jun
7 wk after
Garden pansy
Viola × wittrockiana
26 Nov – 10 Dec
27 May
8-10 wk
4 Feb
22 Jul
0 wk
9 Feb
12 Jul
1 wk after
Petunia
Petunia
20 Dec – 17 Jan
12 May
8-12 wk
14 Mar
7 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Dec
11 May
6-8 wk
6 Feb
22 Jun
0 wk
17 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
31 Jan – 14 Feb
10 Jun
4-6 wk
14 Mar
8 Jul
5 wk after
Common morning glory
Ipomoea purpurea
19 Feb – 5 Mar
1 Jun
3-5 wk
26 Mar
22 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
31 Jan – 14 Feb
12 Jun
4-6 wk
14 Mar
10 Jul
5 wk after
17 Mar
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
21 Jan – 18 Feb
17 May
8-12 wk
15 Apr
12 Jul
10 wk after
Bee balm
Monarda didyma
12 Nov – 10 Dec
27 Apr
8-12 wk
4 Feb
22 Jun
0 wk
2 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
10 – 24 Dec
11 Apr
6-8 wk
4 Feb
23 May
0 wk
22 Jan
13 May
2 wk before
Safflower
Carthamus tinctorius
4 Feb
22 Jun
0 wk
29 Jan
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Dec
31 May
6-8 wk
4 Feb
12 Jul
0 wk
20 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
24 Dec – 7 Jan
14 Jun
4-6 wk
4 Feb
12 Jul
0 wk
17 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
1 – 15 Jan
30 Mar
10-12 wk
26 Mar
8 Jun
7 wk after
Sunflower
Helianthus annuus
14 – 21 Feb
21 Jun
3-4 wk
14 Mar
12 Jul
5 wk after
2 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
17 – 31 Jan
10 Jun
6-8 wk
14 Mar
22 Jul
5 wk after
17 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
3 – 17 Jan
5 Jun
6-8 wk
28 Feb
17 Jul
3 wk after
17 Mar
7 Jul
6 wk after
Hollyhock
Alcea rosea
10 – 24 Dec
6-8 wk
4 Feb
0 wk
17 Feb
2 wk after
Alpine delphinium
Delphinium elatum
12 Nov – 10 Dec
27 Apr
8-12 wk
4 Feb
22 Jun
0 wk
2 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
17 – 31 Jan
5 Jun
6-8 wk
14 Mar
17 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Dec
31 May
6-8 wk
6 Feb
12 Jul
0 wk
17 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
26 Nov – 10 Dec
17 Apr
8-10 wk
4 Feb
12 Jun
0 wk
2 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
15 Jan – 12 Feb
11 May
6-10 wk
26 Mar
22 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
4 Feb
22 Jul
0 wk
29 Jan
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
3 – 17 Jan
17 May
8-10 wk
14 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
10 – 24 Dec
11 May
6-8 wk
4 Feb
22 Jun
0 wk
22 Jan
12 Jun
2 wk before