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Rel. frost
Last spring frost (0°C) 2 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 291 days 2 Feb – 20 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)
15 – 29 Dec
22 Jun
5-7 wk
2 Feb
27 Jul
0 wk
27 Jan
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Dec – 5 Jan
4 Jul
4-6 wk
2 Feb
1 Aug
0 wk
27 Jan
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
18 Dec – 15 Jan
17 Apr
8-12 wk
12 Mar
12 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
15 – 29 Dec
17 Jun
5-7 wk
2 Feb
22 Jul
0 wk
18 Dec
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
24 Feb – 3 Mar
11 Jun
3-4 wk
24 Mar
2 Jul
7 wk after
Florence Fennel
Foeniculum vulgare
17 – 24 Feb
14 Jun
4-5 wk
24 Mar
12 Jul
7 wk after
15 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
26 Mar – 2 Apr
28 May
3-4 wk
23 Apr
18 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
10 Nov – 8 Dec
7 Apr
8-12 wk
2 Feb
2 Jun
0 wk
15 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Jan
22 Jun
1 wk before
27 Jan
12 Jun
1 wk before
Maize
Zea mays
12 – 19 Feb
1 Jun
3-4 wk
12 Mar
22 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 Jan
11 Jul
3-4 wk
4 Feb
1 Aug
0 wk
15 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Feb
12 Jul
0 wk
20 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
15 – 29 Dec
17 Jun
5-7 wk
2 Feb
22 Jul
0 wk
18 Dec
12 Jul
7 wk before
Potato
Solanum tuberosum
27 Dec – 10 Jan
14 Jun
4-6 wk
7 Feb
12 Jul
1 wk after
7 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Dec
27 Jun
5-7 wk
2 Feb
1 Aug
0 wk
27 Jan
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
24 Feb – 3 Mar
2 Jul
3-4 wk
24 Mar
23 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 Jan
3 Jul
3-4 wk
4 Feb
24 Jul
0 wk
15 Feb
14 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
22 Dec – 5 Jan
29 Jun
4-6 wk
2 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 Jan
16 Jul
3-4 wk
2 Feb
6 Aug
0 wk
27 Jan
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
22 Dec – 5 Jan
29 Jun
4-6 wk
2 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Dec – 6 Jan
8 Jun
2-4 wk
20 Jan
22 Jun
2 wk before
20 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 Jan
22 Jun
1 wk before
27 Jan
12 Jun
1 wk before
Spinach
Spinacia oleracea
5 – 12 Jan
31 Jul
3-4 wk
2 Feb
21 Aug
0 wk
13 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
6 – 20 Mar
4-6 wk
17 Apr
11 wk after
Garden tomato
Solanum lycopersicum
15 – 29 Jan
11 May
6-8 wk
12 Mar
22 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 Feb
4 Jul
2-4 wk
12 Mar
18 Jul
5 wk after
15 Mar
8 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
22 Dec – 5 Jan
29 Jun
4-6 wk
2 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 Jan
1 Jul
3-4 wk
2 Feb
22 Jul
0 wk
27 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
10 – 24 Feb
10 Jun
4-6 wk
24 Mar
8 Jul
7 wk after
Lemon balm
Melissa officinalis
24 Nov – 8 Dec
27 May
8-10 wk
2 Feb
22 Jul
0 wk
28 Feb
12 Jul
4 wk after
Dill
Anethum graveolens
27 Jan
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
8 – 22 Dec
10 Jun
6-8 wk
2 Feb
22 Jul
0 wk
30 Dec
12 Jul
5 wk before
Spearmint
Mentha spicata
10 Nov – 8 Dec
27 May
8-12 wk
2 Feb
22 Jul
0 wk
28 Feb
12 Jul
4 wk after
Coriander
Coriandrum sativum
2 Feb
21 Aug
0 wk
15 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
24 Nov – 8 Dec
12 May
8-10 wk
2 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
24 Nov – 8 Dec
17 May
8-10 wk
2 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
8 – 22 Dec
31 May
6-8 wk
2 Feb
12 Jul
0 wk
28 Feb
2 Jul
4 wk after
Parsley
Petroselinum crispum
8 – 22 Dec
31 May
6-8 wk
2 Feb
12 Jul
0 wk
27 Jan
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
29 Oct – 26 Nov
13 Apr
10-14 wk
4 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
24 Feb – 3 Mar
17 Jun
3-4 wk
24 Mar
8 Jul
7 wk after
Cornflower
Centaurea cyanus
2 Feb
22 Jul
0 wk
27 Jan
12 Jul
1 wk before
Statice
Limonium sinuatum
1 – 15 Jan
16 May
8-10 wk
12 Mar
11 Jul
5 wk after
Sweet William
Dianthus barbatus
8 – 22 Dec
6-8 wk
2 Feb
0 wk
7 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Jan
30 May
6-8 wk
12 Mar
11 Jul
5 wk after
17 Apr
1 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
8 – 22 Jan
31 May
6-8 wk
5 Mar
12 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 Jan
14 Jun
4-8 wk
28 Feb
12 Jul
4 wk after
28 Feb
2 Jul
4 wk after
Foxglove
Digitalis purpurea
24 Nov – 8 Dec
8-10 wk
2 Feb
0 wk
15 Feb
2 wk after
Busy lizzie
Impatiens walleriana
30 Dec – 27 Jan
1 Jul
8-12 wk
24 Mar
26 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Jan
9 Jun
6-8 wk
12 Mar
21 Jul
5 wk after
Hyacinth bean
Dolichos lablab
2 – 16 Mar
25 Apr
4-6 wk
13 Apr
23 May
10 wk after
Chinese lantern
Physalis alkekengi
26 Nov – 10 Dec
27 Apr
8-10 wk
4 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
2 Feb
7 Jul
0 wk
27 Jan
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
15 – 29 Jan
20 May
6-8 wk
12 Mar
1 Jul
5 wk after
17 Apr
21 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
12 Nov – 10 Dec
27 Apr
8-12 wk
4 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
18 Dec – 15 Jan
28 Mar
8-12 wk
12 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
30 Dec – 27 Jan
3 May
8-12 wk
24 Mar
28 Jun
7 wk after
Globe amaranth
Gomphrena globosa
27 Jan – 10 Feb
17 May
6-8 wk
24 Mar
28 Jun
7 wk after
Corn poppy
Papaver rhoeas
2 Feb
22 Jul
0 wk
27 Jan
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
10 Nov – 8 Dec
17 May
8-12 wk
2 Feb
12 Jul
0 wk
7 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
13 – 27 Jan
26 May
8-10 wk
24 Mar
21 Jul
7 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Dec
7 Jun
5-8 wk
2 Feb
12 Jul
0 wk
Stock
Matthiola incana
8 – 22 Dec
10 Jun
6-8 wk
2 Feb
22 Jul
0 wk
15 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
8 – 22 Dec
11 May
6-8 wk
2 Feb
22 Jun
0 wk
20 Jan
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
10 – 24 Feb
26 May
4-6 wk
24 Mar
23 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
24 Nov – 8 Dec
27 May
8-10 wk
2 Feb
22 Jul
0 wk
13 Jan
12 Jul
3 wk before
Petunia
Petunia
18 Dec – 15 Jan
16 May
8-12 wk
12 Mar
11 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Dec
11 May
6-8 wk
4 Feb
22 Jun
0 wk
15 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
29 Jan – 12 Feb
13 Jun
4-6 wk
12 Mar
11 Jul
5 wk after
Common morning glory
Ipomoea purpurea
17 Feb – 3 Mar
17 Jun
3-5 wk
24 Mar
8 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
29 Jan – 12 Feb
14 Jun
4-6 wk
12 Mar
12 Jul
5 wk after
15 Mar
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
19 Jan – 16 Feb
2 Jun
8-12 wk
13 Apr
28 Jul
10 wk after
Bee balm
Monarda didyma
10 Nov – 8 Dec
27 Apr
8-12 wk
2 Feb
22 Jun
0 wk
28 Feb
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
8 – 22 Dec
11 Apr
6-8 wk
2 Feb
23 May
0 wk
20 Jan
13 May
2 wk before
Safflower
Carthamus tinctorius
2 Feb
22 Jun
0 wk
27 Jan
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
8 – 22 Dec
31 May
6-8 wk
2 Feb
12 Jul
0 wk
18 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
22 Dec – 5 Jan
14 Jun
4-6 wk
2 Feb
12 Jul
0 wk
15 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
30 Dec – 13 Jan
2 Apr
10-12 wk
24 Mar
11 Jun
7 wk after
Sunflower
Helianthus annuus
12 – 19 Feb
21 Jun
3-4 wk
12 Mar
12 Jul
5 wk after
28 Feb
2 Jul
4 wk after
China aster
Callistephus chinensis
15 – 29 Jan
10 Jun
6-8 wk
12 Mar
22 Jul
5 wk after
15 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
1 – 15 Jan
9 Jun
6-8 wk
26 Feb
21 Jul
3 wk after
15 Mar
11 Jul
6 wk after
Hollyhock
Alcea rosea
8 – 22 Dec
6-8 wk
2 Feb
0 wk
15 Feb
2 wk after
Alpine delphinium
Delphinium elatum
10 Nov – 8 Dec
27 Apr
8-12 wk
2 Feb
22 Jun
0 wk
28 Feb
12 Jun
4 wk after
African marigold
Tagetes erecta
15 – 29 Jan
9 Jun
6-8 wk
12 Mar
21 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Dec
31 May
6-8 wk
4 Feb
12 Jul
0 wk
15 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
24 Nov – 8 Dec
17 Apr
8-10 wk
2 Feb
12 Jun
0 wk
28 Feb
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
13 Jan – 10 Feb
27 May
6-10 wk
24 Mar
8 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
2 Feb
22 Jul
0 wk
27 Jan
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
1 – 15 Jan
17 May
8-10 wk
12 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
8 – 22 Dec
11 May
6-8 wk
2 Feb
22 Jun
0 wk
20 Jan
12 Jun
2 wk before