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Rel. frost
Last spring frost (0°C) 3 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 290 days 3 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)
16 – 30 Dec
22 Jun
5-7 wk
3 Feb
27 Jul
0 wk
28 Jan
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
23 Dec – 6 Jan
4 Jul
4-6 wk
3 Feb
1 Aug
0 wk
28 Jan
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
5 Dec – 2 Jan
18 Apr
8-12 wk
27 Feb
13 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Dec
17 Jun
5-7 wk
3 Feb
22 Jul
0 wk
21 Jan
12 Jul
2 wk before
Garden cucumber
Cucumis sativus
25 Feb – 4 Mar
22 Apr
3-4 wk
25 Mar
13 May
7 wk after
Florence Fennel
Foeniculum vulgare
18 – 25 Feb
14 Jun
4-5 wk
25 Mar
12 Jul
7 wk after
16 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
27 Mar – 3 Apr
13 May
3-4 wk
24 Apr
3 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
11 Nov – 9 Dec
7 Apr
8-12 wk
3 Feb
2 Jun
0 wk
16 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 Jan
22 Jun
1 wk before
28 Jan
12 Jun
1 wk before
Maize
Zea mays
13 – 20 Feb
12 Apr
3-4 wk
13 Mar
3 May
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
8 – 15 Jan
11 Jul
3-4 wk
5 Feb
1 Aug
0 wk
16 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Feb
12 Jul
0 wk
21 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Dec
17 Jun
5-7 wk
3 Feb
22 Jul
0 wk
21 Jan
12 Jul
2 wk before
Potato
Solanum tuberosum
28 Dec – 11 Jan
14 Jun
4-6 wk
8 Feb
12 Jul
1 wk after
8 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Dec
27 Jun
5-7 wk
3 Feb
1 Aug
0 wk
28 Jan
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
25 Feb – 4 Mar
17 Jun
3-4 wk
25 Mar
8 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
8 – 15 Jan
3 Jul
3-4 wk
5 Feb
24 Jul
0 wk
16 Feb
14 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Dec – 6 Jan
29 Jun
4-6 wk
3 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 Jan
16 Jul
3-4 wk
3 Feb
6 Aug
0 wk
28 Jan
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Dec – 6 Jan
29 Jun
4-6 wk
3 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
24 Dec – 7 Jan
8 Jun
2-4 wk
21 Jan
22 Jun
2 wk before
21 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 Jan
22 Jun
1 wk before
28 Jan
12 Jun
1 wk before
Spinach
Spinacia oleracea
6 – 13 Jan
31 Jul
3-4 wk
3 Feb
21 Aug
0 wk
14 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
7 – 21 Mar
4-6 wk
18 Apr
11 wk after
Garden tomato
Solanum lycopersicum
16 – 30 Jan
22 Mar
6-8 wk
13 Mar
3 May
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
13 – 27 Feb
19 Jun
2-4 wk
13 Mar
3 Jul
5 wk after
16 Mar
23 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Dec – 6 Jan
29 Jun
4-6 wk
3 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 Jan
1 Jul
3-4 wk
3 Feb
22 Jul
0 wk
28 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
11 – 25 Feb
26 May
4-6 wk
25 Mar
23 Jun
7 wk after
Lemon balm
Melissa officinalis
25 Nov – 9 Dec
27 May
8-10 wk
3 Feb
22 Jul
0 wk
1 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
28 Jan
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
9 – 23 Dec
10 Jun
6-8 wk
3 Feb
22 Jul
0 wk
31 Dec
12 Jul
5 wk before
Spearmint
Mentha spicata
11 Nov – 9 Dec
27 May
8-12 wk
3 Feb
22 Jul
0 wk
1 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
3 Feb
21 Aug
0 wk
16 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
27 Nov – 11 Dec
12 May
8-10 wk
5 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
25 Nov – 9 Dec
17 May
8-10 wk
3 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Dec
31 May
6-8 wk
3 Feb
12 Jul
0 wk
1 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
9 – 23 Dec
31 May
6-8 wk
3 Feb
12 Jul
0 wk
28 Jan
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
30 Oct – 27 Nov
13 Apr
10-14 wk
5 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
25 Feb – 4 Mar
2 Jun
3-4 wk
25 Mar
23 Jun
7 wk after
Cornflower
Centaurea cyanus
3 Feb
22 Jul
0 wk
28 Jan
12 Jul
1 wk before
Statice
Limonium sinuatum
2 – 16 Jan
6 May
8-10 wk
13 Mar
1 Jul
5 wk after
Sweet William
Dianthus barbatus
9 – 23 Dec
6-8 wk
3 Feb
0 wk
8 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
16 – 30 Jan
20 May
6-8 wk
13 Mar
1 Jul
5 wk after
18 Apr
21 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Jan
30 May
6-8 wk
6 Mar
11 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
4 Jan – 1 Feb
13 Jun
4-8 wk
1 Mar
11 Jul
4 wk after
1 Mar
1 Jul
4 wk after
Foxglove
Digitalis purpurea
25 Nov – 9 Dec
8-10 wk
3 Feb
0 wk
16 Feb
2 wk after
Busy lizzie
Impatiens walleriana
31 Dec – 28 Jan
28 Jun
8-12 wk
25 Mar
23 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Jan
30 May
6-8 wk
13 Mar
11 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
11 – 25 Feb
26 Apr
4-6 wk
25 Mar
24 May
7 wk after
Chinese lantern
Physalis alkekengi
27 Nov – 11 Dec
27 Apr
8-10 wk
5 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
3 Feb
7 Jul
0 wk
28 Jan
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
16 – 30 Jan
10 May
6-8 wk
13 Mar
21 Jun
5 wk after
18 Apr
11 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
13 Nov – 11 Dec
27 Apr
8-12 wk
5 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
19 Dec – 16 Jan
28 Mar
8-12 wk
13 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
31 Dec – 28 Jan
18 Apr
8-12 wk
25 Mar
13 Jun
7 wk after
Globe amaranth
Gomphrena globosa
28 Jan – 11 Feb
2 May
6-8 wk
25 Mar
13 Jun
7 wk after
Corn poppy
Papaver rhoeas
3 Feb
22 Jul
0 wk
28 Jan
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
11 Nov – 9 Dec
17 May
8-12 wk
3 Feb
12 Jul
0 wk
8 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
14 – 28 Jan
16 May
8-10 wk
25 Mar
11 Jul
7 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Dec
7 Jun
5-8 wk
3 Feb
12 Jul
0 wk
Stock
Matthiola incana
9 – 23 Dec
10 Jun
6-8 wk
3 Feb
22 Jul
0 wk
16 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
9 – 23 Dec
11 May
6-8 wk
3 Feb
22 Jun
0 wk
16 Feb
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
11 – 25 Feb
11 May
4-6 wk
25 Mar
8 Jun
7 wk after
Garden pansy
Viola × wittrockiana
25 Nov – 9 Dec
27 May
8-10 wk
3 Feb
22 Jul
0 wk
8 Feb
12 Jul
1 wk after
Petunia
Petunia
19 Dec – 16 Jan
6 May
8-12 wk
13 Mar
1 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Dec
11 May
6-8 wk
5 Feb
22 Jun
0 wk
16 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
30 Jan – 13 Feb
10 Jun
4-6 wk
13 Mar
8 Jul
5 wk after
Common morning glory
Ipomoea purpurea
18 Feb – 4 Mar
2 Jun
3-5 wk
25 Mar
23 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
30 Jan – 13 Feb
13 Jun
4-6 wk
13 Mar
11 Jul
5 wk after
16 Mar
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
20 Jan – 17 Feb
18 May
8-12 wk
14 Apr
13 Jul
10 wk after
Bee balm
Monarda didyma
11 Nov – 9 Dec
27 Apr
8-12 wk
3 Feb
22 Jun
0 wk
1 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
9 – 23 Dec
11 Apr
6-8 wk
3 Feb
23 May
0 wk
16 Feb
13 May
2 wk after
Safflower
Carthamus tinctorius
3 Feb
22 Jun
0 wk
28 Jan
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Dec
31 May
6-8 wk
3 Feb
12 Jul
0 wk
19 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
23 Dec – 6 Jan
14 Jun
4-6 wk
3 Feb
12 Jul
0 wk
16 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
31 Dec – 14 Jan
30 Mar
10-12 wk
25 Mar
8 Jun
7 wk after
Sunflower
Helianthus annuus
13 – 20 Feb
21 Jun
3-4 wk
13 Mar
12 Jul
5 wk after
1 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
16 – 30 Jan
10 Jun
6-8 wk
13 Mar
22 Jul
5 wk after
16 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
2 – 16 Jan
30 May
6-8 wk
27 Feb
11 Jul
3 wk after
16 Mar
1 Jul
6 wk after
Hollyhock
Alcea rosea
9 – 23 Dec
6-8 wk
3 Feb
0 wk
16 Feb
2 wk after
Alpine delphinium
Delphinium elatum
11 Nov – 9 Dec
27 Apr
8-12 wk
3 Feb
22 Jun
0 wk
1 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Jan
30 May
6-8 wk
13 Mar
11 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Dec
31 May
6-8 wk
5 Feb
12 Jul
0 wk
16 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
25 Nov – 9 Dec
17 Apr
8-10 wk
3 Feb
12 Jun
0 wk
1 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
14 Jan – 11 Feb
12 May
6-10 wk
25 Mar
23 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
3 Feb
22 Jul
0 wk
28 Jan
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
2 – 16 Jan
17 May
8-10 wk
13 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
9 – 23 Dec
11 May
6-8 wk
3 Feb
22 Jun
0 wk
21 Jan
12 Jun
2 wk before