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Rel. frost
Last spring frost (0°C) 19 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 266 days 19 Feb – 12 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)
1 – 15 Jan
22 Jun
5-7 wk
19 Feb
27 Jul
0 wk
13 Feb
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Jan
4 Jul
4-6 wk
19 Feb
1 Aug
0 wk
13 Feb
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
21 Dec – 18 Jan
16 Apr
8-12 wk
15 Mar
11 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
1 – 15 Jan
17 Jun
5-7 wk
19 Feb
22 Jul
0 wk
4 Jan
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
Fleece
1 – 8 Mar
10 Jun
3-4 wk
29 Mar
1 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
6 – 13 Mar
14 Jun
4-5 wk
10 Apr
12 Jul
7 wk after
1 Apr
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
23 – 30 Mar
27 May
3-4 wk
20 Apr
17 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
27 Nov – 25 Dec
7 Apr
8-12 wk
19 Feb
2 Jun
0 wk
4 Mar
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
13 Feb
22 Jun
1 wk before
13 Feb
12 Jun
1 wk before
Maize
Zea mays
Fleece
15 – 22 Feb
31 May
3-4 wk
15 Mar
21 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 – 31 Jan
11 Jul
3-4 wk
21 Feb
1 Aug
0 wk
4 Mar
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
19 Feb
12 Jul
0 wk
6 Feb
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
1 – 15 Jan
17 Jun
5-7 wk
19 Feb
22 Jul
0 wk
4 Jan
12 Jul
7 wk before
Potato
Solanum tuberosum
13 – 27 Jan
14 Jun
4-6 wk
24 Feb
12 Jul
1 wk after
24 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Jan
27 Jun
5-7 wk
19 Feb
1 Aug
0 wk
13 Feb
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
13 – 20 Mar
15 Jun
3-4 wk
10 Apr
6 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 – 31 Jan
28 Jun
3-4 wk
21 Feb
19 Jul
0 wk
4 Mar
9 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
8 – 22 Jan
29 Jun
4-6 wk
19 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
22 – 29 Jan
16 Jul
3-4 wk
19 Feb
6 Aug
0 wk
13 Feb
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
8 – 22 Jan
29 Jun
4-6 wk
19 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
9 – 23 Jan
8 Jun
2-4 wk
6 Feb
22 Jun
2 wk before
6 Feb
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 Feb
22 Jun
1 wk before
13 Feb
12 Jun
1 wk before
Spinach
Spinacia oleracea
22 – 29 Jan
31 Jul
3-4 wk
19 Feb
21 Aug
0 wk
30 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
23 Mar – 6 Apr
4-6 wk
4 May
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
18 Jan – 1 Feb
10 May
6-8 wk
15 Mar
21 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
1 – 15 Mar
17 Jun
2-4 wk
29 Mar
1 Jul
5 wk after
1 Apr
21 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
8 – 22 Jan
29 Jun
4-6 wk
19 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
22 – 29 Jan
1 Jul
3-4 wk
19 Feb
22 Jul
0 wk
13 Feb
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
27 Feb – 13 Mar
24 May
4-6 wk
10 Apr
21 Jun
7 wk after
Lemon balm
Melissa officinalis
11 – 25 Dec
27 May
8-10 wk
19 Feb
22 Jul
0 wk
17 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
13 Feb
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
25 Dec – 8 Jan
10 Jun
6-8 wk
19 Feb
22 Jul
0 wk
16 Jan
12 Jul
5 wk before
Spearmint
Mentha spicata
27 Nov – 25 Dec
27 May
8-12 wk
19 Feb
22 Jul
0 wk
17 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
19 Feb
21 Aug
0 wk
4 Mar
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
11 – 25 Dec
12 May
8-10 wk
19 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
11 – 25 Dec
17 May
8-10 wk
19 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
25 Dec – 8 Jan
31 May
6-8 wk
19 Feb
12 Jul
0 wk
17 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
25 Dec – 8 Jan
31 May
6-8 wk
19 Feb
12 Jul
0 wk
13 Feb
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
15 Nov – 13 Dec
13 Apr
10-14 wk
21 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
13 – 20 Mar
31 May
3-4 wk
10 Apr
21 Jun
7 wk after
Cornflower
Centaurea cyanus
19 Feb
22 Jul
0 wk
13 Feb
12 Jul
1 wk before
Statice
Limonium sinuatum
18 Jan – 1 Feb
10 May
8-10 wk
29 Mar
5 Jul
5 wk after
Sweet William
Dianthus barbatus
25 Dec – 8 Jan
6-8 wk
19 Feb
0 wk
24 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
1 – 15 Feb
24 May
6-8 wk
29 Mar
5 Jul
5 wk after
4 May
25 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
25 Jan – 8 Feb
26 May
6-8 wk
22 Mar
7 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
20 Jan – 17 Feb
9 Jun
4-8 wk
17 Mar
7 Jul
4 wk after
17 Mar
27 Jun
4 wk after
Foxglove
Digitalis purpurea
11 – 25 Dec
8-10 wk
19 Feb
0 wk
4 Mar
2 wk after
Busy lizzie
Impatiens walleriana
16 Jan – 13 Feb
27 Jun
8-12 wk
10 Apr
22 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 Feb
3 Jun
6-8 wk
29 Mar
15 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
27 Feb – 13 Mar
24 Apr
4-6 wk
10 Apr
22 May
7 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Dec
27 Apr
8-10 wk
21 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
19 Feb
7 Jul
0 wk
13 Feb
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
1 – 15 Feb
14 May
6-8 wk
29 Mar
25 Jun
5 wk after
4 May
15 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
29 Nov – 27 Dec
27 Apr
8-12 wk
21 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
4 Jan – 1 Feb
28 Mar
8-12 wk
29 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
16 Jan – 13 Feb
16 Apr
8-12 wk
10 Apr
11 Jun
7 wk after
Globe amaranth
Gomphrena globosa
13 – 27 Feb
30 Apr
6-8 wk
10 Apr
11 Jun
7 wk after
Corn poppy
Papaver rhoeas
19 Feb
22 Jul
0 wk
13 Feb
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
27 Nov – 25 Dec
17 May
8-12 wk
19 Feb
12 Jul
0 wk
24 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
30 Jan – 13 Feb
20 May
8-10 wk
10 Apr
15 Jul
7 wk after
Sweet pea
Lathyrus odoratus
25 Dec – 15 Jan
7 Jun
5-8 wk
19 Feb
12 Jul
0 wk
Stock
Matthiola incana
25 Dec – 8 Jan
10 Jun
6-8 wk
19 Feb
22 Jul
0 wk
4 Mar
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
25 Dec – 8 Jan
11 May
6-8 wk
19 Feb
22 Jun
0 wk
6 Feb
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
27 Feb – 13 Mar
9 May
4-6 wk
10 Apr
6 Jun
7 wk after
Garden pansy
Viola × wittrockiana
11 – 25 Dec
27 May
8-10 wk
19 Feb
22 Jul
0 wk
24 Feb
12 Jul
1 wk after
Petunia
Petunia
4 Jan – 1 Feb
10 May
8-12 wk
29 Mar
5 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Dec – 10 Jan
11 May
6-8 wk
21 Feb
22 Jun
0 wk
1 Apr
12 Jun
6 wk after
Common zinnia
Zinnia elegans
15 Feb – 1 Mar
9 Jun
4-6 wk
29 Mar
7 Jul
5 wk after
Common morning glory
Ipomoea purpurea
6 – 20 Mar
31 May
3-5 wk
10 Apr
21 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
15 Feb – 1 Mar
9 Jun
4-6 wk
29 Mar
7 Jul
5 wk after
1 Apr
27 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
5 Feb – 5 Mar
16 May
8-12 wk
30 Apr
11 Jul
10 wk after
Bee balm
Monarda didyma
27 Nov – 25 Dec
27 Apr
8-12 wk
19 Feb
22 Jun
0 wk
17 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
25 Dec – 8 Jan
11 Apr
6-8 wk
19 Feb
23 May
0 wk
6 Feb
13 May
2 wk before
Safflower
Carthamus tinctorius
19 Feb
22 Jun
0 wk
13 Feb
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
25 Dec – 8 Jan
31 May
6-8 wk
19 Feb
12 Jul
0 wk
4 Jan
2 Jul
7 wk before
Bishop's flower
Ammi majus
8 – 22 Jan
14 Jun
4-6 wk
19 Feb
12 Jul
0 wk
4 Mar
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
16 – 30 Jan
29 Mar
10-12 wk
10 Apr
7 Jun
7 wk after
Sunflower
Helianthus annuus
1 – 8 Mar
21 Jun
3-4 wk
29 Mar
12 Jul
5 wk after
17 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
1 – 15 Feb
10 Jun
6-8 wk
29 Mar
22 Jul
5 wk after
1 Apr
12 Jul
6 wk after
Annual phlox
Phlox drummondii
18 Jan – 1 Feb
3 Jun
6-8 wk
15 Mar
15 Jul
3 wk after
1 Apr
5 Jul
6 wk after
Hollyhock
Alcea rosea
25 Dec – 8 Jan
6-8 wk
19 Feb
0 wk
4 Mar
2 wk after
Alpine delphinium
Delphinium elatum
27 Nov – 25 Dec
27 Apr
8-12 wk
19 Feb
22 Jun
0 wk
17 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
1 – 15 Feb
3 Jun
6-8 wk
29 Mar
15 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
27 Dec – 10 Jan
31 May
6-8 wk
21 Feb
12 Jul
0 wk
1 Apr
2 Jul
6 wk after
Wood sage
Salvia nemorosa
11 – 25 Dec
17 Apr
8-10 wk
19 Feb
12 Jun
0 wk
17 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
30 Jan – 27 Feb
10 May
6-10 wk
10 Apr
21 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
19 Feb
22 Jul
0 wk
13 Feb
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
18 Jan – 1 Feb
17 May
8-10 wk
29 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
25 Dec – 8 Jan
11 May
6-8 wk
19 Feb
22 Jun
0 wk
6 Feb
12 Jun
2 wk before