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Rel. frost
Last spring frost (0°C) 10 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 284 days 10 Feb – 21 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)
23 Dec – 6 Jan
22 Jun
5-7 wk
10 Feb
27 Jul
0 wk
4 Feb
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
30 Dec – 13 Jan
4 Jul
4-6 wk
10 Feb
1 Aug
0 wk
4 Feb
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
26 Dec – 23 Jan
16 Apr
8-12 wk
20 Mar
11 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
23 Dec – 6 Jan
17 Jun
5-7 wk
10 Feb
22 Jul
0 wk
26 Dec
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
4 – 11 Mar
10 Jun
3-4 wk
1 Apr
1 Jul
7 wk after
Florence Fennel
Foeniculum vulgare
25 Feb – 4 Mar
14 Jun
4-5 wk
1 Apr
12 Jul
7 wk after
23 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
3 – 10 Apr
30 May
3-4 wk
1 May
20 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Nov – 16 Dec
7 Apr
8-12 wk
10 Feb
2 Jun
0 wk
23 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
4 Feb
22 Jun
1 wk before
4 Feb
12 Jun
1 wk before
Maize
Zea mays
20 – 27 Feb
31 May
3-4 wk
20 Mar
21 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Jan
11 Jul
3-4 wk
12 Feb
1 Aug
0 wk
23 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 Feb
12 Jul
0 wk
28 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
23 Dec – 6 Jan
17 Jun
5-7 wk
10 Feb
22 Jul
0 wk
26 Dec
12 Jul
7 wk before
Potato
Solanum tuberosum
4 – 18 Jan
14 Jun
4-6 wk
15 Feb
12 Jul
1 wk after
15 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Dec – 6 Jan
27 Jun
5-7 wk
10 Feb
1 Aug
0 wk
4 Feb
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
4 – 11 Mar
4 Jul
3-4 wk
1 Apr
25 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 Jan
2 Jul
3-4 wk
12 Feb
23 Jul
0 wk
23 Feb
13 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
30 Dec – 13 Jan
29 Jun
4-6 wk
10 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 Jan
16 Jul
3-4 wk
10 Feb
6 Aug
0 wk
4 Feb
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
30 Dec – 13 Jan
29 Jun
4-6 wk
10 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
31 Dec – 14 Jan
8 Jun
2-4 wk
28 Jan
22 Jun
2 wk before
28 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
4 Feb
22 Jun
1 wk before
4 Feb
12 Jun
1 wk before
Spinach
Spinacia oleracea
13 – 20 Jan
31 Jul
3-4 wk
10 Feb
21 Aug
0 wk
21 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
14 – 28 Mar
4-6 wk
25 Apr
11 wk after
Garden tomato
Solanum lycopersicum
23 Jan – 6 Feb
10 May
6-8 wk
20 Mar
21 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
20 Feb – 6 Mar
6 Jul
2-4 wk
20 Mar
20 Jul
5 wk after
23 Mar
10 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
30 Dec – 13 Jan
29 Jun
4-6 wk
10 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 Jan
1 Jul
3-4 wk
10 Feb
22 Jul
0 wk
4 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
18 Feb – 4 Mar
12 Jun
4-6 wk
1 Apr
10 Jul
7 wk after
Lemon balm
Melissa officinalis
2 – 16 Dec
27 May
8-10 wk
10 Feb
22 Jul
0 wk
8 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
4 Feb
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
16 – 30 Dec
10 Jun
6-8 wk
10 Feb
22 Jul
0 wk
7 Jan
12 Jul
5 wk before
Spearmint
Mentha spicata
18 Nov – 16 Dec
27 May
8-12 wk
10 Feb
22 Jul
0 wk
8 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
10 Feb
21 Aug
0 wk
23 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
2 – 16 Dec
12 May
8-10 wk
10 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
2 – 16 Dec
17 May
8-10 wk
10 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
16 – 30 Dec
31 May
6-8 wk
10 Feb
12 Jul
0 wk
8 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
16 – 30 Dec
31 May
6-8 wk
10 Feb
12 Jul
0 wk
4 Feb
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
6 Nov – 4 Dec
13 Apr
10-14 wk
12 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
4 – 11 Mar
19 Jun
3-4 wk
1 Apr
10 Jul
7 wk after
Cornflower
Centaurea cyanus
10 Feb
22 Jul
0 wk
4 Feb
12 Jul
1 wk before
Statice
Limonium sinuatum
9 – 23 Jan
14 May
8-10 wk
20 Mar
9 Jul
5 wk after
Sweet William
Dianthus barbatus
16 – 30 Dec
6-8 wk
10 Feb
0 wk
15 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Jan – 6 Feb
28 May
6-8 wk
20 Mar
9 Jul
5 wk after
25 Apr
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
16 – 30 Jan
31 May
6-8 wk
13 Mar
12 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
11 Jan – 8 Feb
14 Jun
4-8 wk
8 Mar
12 Jul
4 wk after
8 Mar
2 Jul
4 wk after
Foxglove
Digitalis purpurea
2 – 16 Dec
8-10 wk
10 Feb
0 wk
23 Feb
2 wk after
Busy lizzie
Impatiens walleriana
7 Jan – 4 Feb
9 Jul
8-12 wk
1 Apr
3 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
23 Jan – 6 Feb
7 Jun
6-8 wk
20 Mar
19 Jul
5 wk after
Hyacinth bean
Dolichos lablab
10 – 24 Mar
24 Apr
4-6 wk
21 Apr
22 May
10 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Dec
27 Apr
8-10 wk
12 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
10 Feb
7 Jul
0 wk
4 Feb
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
23 Jan – 6 Feb
18 May
6-8 wk
20 Mar
29 Jun
5 wk after
25 Apr
19 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
20 Nov – 18 Dec
27 Apr
8-12 wk
12 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
26 Dec – 23 Jan
28 Mar
8-12 wk
20 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
7 Jan – 4 Feb
5 May
8-12 wk
1 Apr
30 Jun
7 wk after
Globe amaranth
Gomphrena globosa
4 – 18 Feb
19 May
6-8 wk
1 Apr
30 Jun
7 wk after
Corn poppy
Papaver rhoeas
10 Feb
22 Jul
0 wk
4 Feb
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
18 Nov – 16 Dec
17 May
8-12 wk
10 Feb
12 Jul
0 wk
15 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
21 Jan – 4 Feb
24 May
8-10 wk
1 Apr
19 Jul
7 wk after
Sweet pea
Lathyrus odoratus
16 Dec – 6 Jan
7 Jun
5-8 wk
10 Feb
12 Jul
0 wk
Stock
Matthiola incana
16 – 30 Dec
10 Jun
6-8 wk
10 Feb
22 Jul
0 wk
23 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
16 – 30 Dec
11 May
6-8 wk
10 Feb
22 Jun
0 wk
28 Jan
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
18 Feb – 4 Mar
28 May
4-6 wk
1 Apr
25 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
2 – 16 Dec
27 May
8-10 wk
10 Feb
22 Jul
0 wk
21 Jan
12 Jul
3 wk before
Petunia
Petunia
26 Dec – 23 Jan
14 May
8-12 wk
20 Mar
9 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Dec – 1 Jan
11 May
6-8 wk
12 Feb
22 Jun
0 wk
23 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
6 – 20 Feb
21 Jun
4-6 wk
20 Mar
19 Jul
5 wk after
Common morning glory
Ipomoea purpurea
25 Feb – 11 Mar
19 Jun
3-5 wk
1 Apr
10 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
6 – 20 Feb
14 Jun
4-6 wk
20 Mar
12 Jul
5 wk after
23 Mar
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
27 Jan – 24 Feb
4 Jun
8-12 wk
21 Apr
30 Jul
10 wk after
Bee balm
Monarda didyma
18 Nov – 16 Dec
27 Apr
8-12 wk
10 Feb
22 Jun
0 wk
8 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
16 – 30 Dec
11 Apr
6-8 wk
10 Feb
23 May
0 wk
28 Jan
13 May
2 wk before
Safflower
Carthamus tinctorius
10 Feb
22 Jun
0 wk
4 Feb
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
16 – 30 Dec
31 May
6-8 wk
10 Feb
12 Jul
0 wk
26 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
30 Dec – 13 Jan
14 Jun
4-6 wk
10 Feb
12 Jul
0 wk
23 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
7 – 21 Jan
10 Apr
10-12 wk
1 Apr
19 Jun
7 wk after
Sunflower
Helianthus annuus
20 – 27 Feb
21 Jun
3-4 wk
20 Mar
12 Jul
5 wk after
8 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
23 Jan – 6 Feb
10 Jun
6-8 wk
20 Mar
22 Jul
5 wk after
23 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Jan
7 Jun
6-8 wk
6 Mar
19 Jul
3 wk after
23 Mar
9 Jul
6 wk after
Hollyhock
Alcea rosea
16 – 30 Dec
6-8 wk
10 Feb
0 wk
23 Feb
2 wk after
Alpine delphinium
Delphinium elatum
18 Nov – 16 Dec
27 Apr
8-12 wk
10 Feb
22 Jun
0 wk
8 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
23 Jan – 6 Feb
7 Jun
6-8 wk
20 Mar
19 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
18 Dec – 1 Jan
31 May
6-8 wk
12 Feb
12 Jul
0 wk
23 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
2 – 16 Dec
17 Apr
8-10 wk
10 Feb
12 Jun
0 wk
8 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
21 Jan – 18 Feb
29 May
6-10 wk
1 Apr
10 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
10 Feb
22 Jul
0 wk
4 Feb
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
9 – 23 Jan
17 May
8-10 wk
20 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
16 – 30 Dec
11 May
6-8 wk
10 Feb
22 Jun
0 wk
28 Jan
12 Jun
2 wk before