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Rel. frost
Last spring frost (0°C) 23 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 270 days 23 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)
5 – 19 Jan
22 Jun
5-7 wk
23 Feb
27 Jul
0 wk
17 Feb
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Jan
4 Jul
4-6 wk
23 Feb
1 Aug
0 wk
17 Feb
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
8 Jan – 5 Feb
27 Mar
8-12 wk
2 Apr
22 May
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
5 – 19 Jan
17 Jun
5-7 wk
23 Feb
22 Jul
0 wk
8 Jan
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
17 – 24 Mar
21 May
3-4 wk
14 Apr
11 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
10 – 17 Mar
14 Jun
4-5 wk
14 Apr
12 Jul
7 wk after
5 Apr
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
16 – 23 Apr
18 May
3-4 wk
14 May
8 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
1 – 29 Dec
7 Apr
8-12 wk
23 Feb
2 Jun
0 wk
8 Mar
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 Feb
22 Jun
1 wk before
17 Feb
12 Jun
1 wk before
Maize
Zea mays
5 – 12 Mar
11 May
3-4 wk
2 Apr
1 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Jan – 4 Feb
11 Jul
3-4 wk
25 Feb
1 Aug
0 wk
8 Mar
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
23 Feb
12 Jul
0 wk
10 Feb
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
5 – 19 Jan
17 Jun
5-7 wk
23 Feb
22 Jul
0 wk
8 Jan
12 Jul
7 wk before
Potato
Solanum tuberosum
17 – 31 Jan
14 Jun
4-6 wk
28 Feb
12 Jul
1 wk after
28 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Jan
27 Jun
5-7 wk
23 Feb
1 Aug
0 wk
17 Feb
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
17 – 24 Mar
22 Jun
3-4 wk
14 Apr
13 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Jan – 4 Feb
4 Jul
3-4 wk
25 Feb
25 Jul
0 wk
8 Mar
15 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
12 – 26 Jan
29 Jun
4-6 wk
23 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
26 Jan – 2 Feb
16 Jul
3-4 wk
23 Feb
6 Aug
0 wk
17 Feb
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
12 – 26 Jan
29 Jun
4-6 wk
23 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 Jan
8 Jun
2-4 wk
10 Feb
22 Jun
2 wk before
10 Feb
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
17 Feb
22 Jun
1 wk before
17 Feb
12 Jun
1 wk before
Spinach
Spinacia oleracea
26 Jan – 2 Feb
31 Jul
3-4 wk
23 Feb
21 Aug
0 wk
3 Feb
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
27 Mar – 10 Apr
4-6 wk
8 May
11 wk after
Garden tomato
Solanum lycopersicum
5 – 19 Feb
20 Apr
6-8 wk
2 Apr
1 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
5 – 19 Mar
24 Jun
2-4 wk
2 Apr
8 Jul
5 wk after
5 Apr
28 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
12 – 26 Jan
29 Jun
4-6 wk
23 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
26 Jan – 2 Feb
1 Jul
3-4 wk
23 Feb
22 Jul
0 wk
17 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
3 – 17 Mar
31 May
4-6 wk
14 Apr
28 Jun
7 wk after
Lemon balm
Melissa officinalis
15 – 29 Dec
27 May
8-10 wk
23 Feb
22 Jul
0 wk
21 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
17 Feb
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
29 Dec – 12 Jan
10 Jun
6-8 wk
23 Feb
22 Jul
0 wk
20 Jan
12 Jul
5 wk before
Spearmint
Mentha spicata
1 – 29 Dec
27 May
8-12 wk
23 Feb
22 Jul
0 wk
21 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
23 Feb
21 Aug
0 wk
8 Mar
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
15 – 29 Dec
12 May
8-10 wk
23 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
15 – 29 Dec
17 May
8-10 wk
23 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
29 Dec – 12 Jan
31 May
6-8 wk
23 Feb
12 Jul
0 wk
21 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
29 Dec – 12 Jan
31 May
6-8 wk
23 Feb
12 Jul
0 wk
17 Feb
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
19 Nov – 17 Dec
13 Apr
10-14 wk
25 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
17 – 24 Mar
7 Jun
3-4 wk
14 Apr
28 Jun
7 wk after
Cornflower
Centaurea cyanus
23 Feb
22 Jul
0 wk
17 Feb
12 Jul
1 wk before
Statice
Limonium sinuatum
22 Jan – 5 Feb
11 May
8-10 wk
2 Apr
6 Jul
5 wk after
Sweet William
Dianthus barbatus
29 Dec – 12 Jan
6-8 wk
23 Feb
0 wk
28 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
5 – 19 Feb
25 May
6-8 wk
2 Apr
6 Jul
5 wk after
8 May
26 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
29 Jan – 12 Feb
30 May
6-8 wk
26 Mar
11 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
24 Jan – 21 Feb
13 Jun
4-8 wk
21 Mar
11 Jul
4 wk after
21 Mar
1 Jul
4 wk after
Foxglove
Digitalis purpurea
15 – 29 Dec
8-10 wk
23 Feb
0 wk
8 Mar
2 wk after
Busy lizzie
Impatiens walleriana
20 Jan – 17 Feb
2 Jul
8-12 wk
14 Apr
27 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
5 – 19 Feb
4 Jun
6-8 wk
2 Apr
16 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
3 – 17 Mar
1 May
4-6 wk
14 Apr
29 May
7 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Dec
27 Apr
8-10 wk
25 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
23 Feb
7 Jul
0 wk
17 Feb
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
5 – 19 Feb
15 May
6-8 wk
2 Apr
26 Jun
5 wk after
8 May
16 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Dec
27 Apr
8-12 wk
25 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
8 Jan – 5 Feb
28 Mar
8-12 wk
2 Apr
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
20 Jan – 17 Feb
23 Apr
8-12 wk
14 Apr
18 Jun
7 wk after
Globe amaranth
Gomphrena globosa
17 Feb – 3 Mar
7 May
6-8 wk
14 Apr
18 Jun
7 wk after
Corn poppy
Papaver rhoeas
23 Feb
22 Jul
0 wk
17 Feb
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
1 – 29 Dec
17 May
8-12 wk
23 Feb
12 Jul
0 wk
28 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
3 – 17 Feb
21 May
8-10 wk
14 Apr
16 Jul
7 wk after
Sweet pea
Lathyrus odoratus
29 Dec – 19 Jan
7 Jun
5-8 wk
23 Feb
12 Jul
0 wk
Stock
Matthiola incana
29 Dec – 12 Jan
10 Jun
6-8 wk
23 Feb
22 Jul
0 wk
8 Mar
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
29 Dec – 12 Jan
11 May
6-8 wk
23 Feb
22 Jun
0 wk
10 Feb
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
3 – 17 Mar
16 May
4-6 wk
14 Apr
13 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
15 – 29 Dec
27 May
8-10 wk
23 Feb
22 Jul
0 wk
3 Feb
12 Jul
3 wk before
Petunia
Petunia
8 Jan – 5 Feb
11 May
8-12 wk
2 Apr
6 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Dec – 14 Jan
11 May
6-8 wk
25 Feb
22 Jun
0 wk
5 Apr
12 Jun
6 wk after
Common zinnia
Zinnia elegans
19 Feb – 5 Mar
14 Jun
4-6 wk
2 Apr
12 Jul
5 wk after
Common morning glory
Ipomoea purpurea
10 – 24 Mar
7 Jun
3-5 wk
14 Apr
28 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
19 Feb – 5 Mar
13 Jun
4-6 wk
2 Apr
11 Jul
5 wk after
5 Apr
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
9 Feb – 9 Mar
23 May
8-12 wk
4 May
18 Jul
10 wk after
Bee balm
Monarda didyma
1 – 29 Dec
27 Apr
8-12 wk
23 Feb
22 Jun
0 wk
21 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
29 Dec – 12 Jan
11 Apr
6-8 wk
23 Feb
23 May
0 wk
10 Feb
13 May
2 wk before
Safflower
Carthamus tinctorius
23 Feb
22 Jun
0 wk
17 Feb
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
29 Dec – 12 Jan
31 May
6-8 wk
23 Feb
12 Jul
0 wk
8 Jan
2 Jul
7 wk before
Bishop's flower
Ammi majus
12 – 26 Jan
14 Jun
4-6 wk
23 Feb
12 Jul
0 wk
8 Mar
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
20 Jan – 3 Feb
3 Apr
10-12 wk
14 Apr
12 Jun
7 wk after
Sunflower
Helianthus annuus
5 – 12 Mar
21 Jun
3-4 wk
2 Apr
12 Jul
5 wk after
21 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
5 – 19 Feb
10 Jun
6-8 wk
2 Apr
22 Jul
5 wk after
5 Apr
12 Jul
6 wk after
Annual phlox
Phlox drummondii
22 Jan – 5 Feb
4 Jun
6-8 wk
19 Mar
16 Jul
3 wk after
5 Apr
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Dec – 12 Jan
6-8 wk
23 Feb
0 wk
8 Mar
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Dec
27 Apr
8-12 wk
23 Feb
22 Jun
0 wk
21 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
5 – 19 Feb
4 Jun
6-8 wk
2 Apr
16 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
31 Dec – 14 Jan
31 May
6-8 wk
25 Feb
12 Jul
0 wk
5 Apr
2 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Dec
17 Apr
8-10 wk
23 Feb
12 Jun
0 wk
21 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
3 Feb – 3 Mar
17 May
6-10 wk
14 Apr
28 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
23 Feb
22 Jul
0 wk
17 Feb
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
22 Jan – 5 Feb
17 May
8-10 wk
2 Apr
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
29 Dec – 12 Jan
11 May
6-8 wk
23 Feb
22 Jun
0 wk
10 Feb
12 Jun
2 wk before