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