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Rel. frost
Last spring frost (0°C) 19 Jan Frost 3 of 4 years · 20 years of data
Frost-free season 307 days 19 Jan – 22 Nov
Probability that frost is over

25% = 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
1 – 15 Dec
16 Jun
5-7 wk
19 Jan
21 Jul
0 wk
7 Jan
11 Jul
2 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
8 – 22 Dec
28 Jun
4-6 wk
19 Jan
26 Jul
0 wk
7 Jan
16 Jul
2 wk before
Chili pepper
Capsicum annuum
Greenhouse
20 Nov – 18 Dec
29 Apr
8-12 wk
12 Feb
24 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
1 – 15 Dec
11 Jun
5-7 wk
19 Jan
16 Jul
0 wk
1 Jan
6 Jul
3 wk before
Garden cucumber
Cucumis sativus
Fleece
29 Jan – 5 Feb
23 Jun
3-4 wk
26 Feb
14 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 Feb
8 Jun
4-5 wk
10 Mar
6 Jul
7 wk after
9 Mar
26 Jun
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
20 – 27 Feb
5 Jun
3-4 wk
20 Mar
26 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
27 Oct – 24 Nov
1 Apr
8-12 wk
19 Jan
27 May
0 wk
19 Jan
17 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
7 Jan
16 Jun
2 wk before
7 Jan
6 Jun
2 wk before
Maize
Zea mays
Fleece
15 – 22 Jan
13 Jun
3-4 wk
12 Feb
4 Jul
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
Season too short
22 – 29 Dec
5 Jul
3-4 wk
19 Jan
26 Jul
0 wk
19 Jan
16 Jul
0 wk
Carrot
Daucus carota subsp. sativus var. sativus
19 Jan
6 Jul
0 wk
19 Jan
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
1 – 15 Dec
11 Jun
5-7 wk
19 Jan
16 Jul
0 wk
1 Jan
6 Jul
3 wk before
Potato
Solanum tuberosum
Season too short
4 – 18 Dec
8 Jun
4-6 wk
15 Jan
6 Jul
1 wk before
15 Jan
26 Jun
1 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
Season too short
1 – 15 Dec
21 Jun
5-7 wk
19 Jan
26 Jul
0 wk
7 Jan
16 Jul
2 wk before
Pumpkin
Cucurbita pepo
10 – 17 Feb
28 Jun
3-4 wk
10 Mar
19 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
22 – 29 Dec
5 Jul
3-4 wk
19 Jan
26 Jul
0 wk
19 Jan
16 Jul
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
8 – 22 Dec
23 Jun
4-6 wk
19 Jan
21 Jul
0 wk
Lettuce
Lactuca sativa
Season too short
22 – 29 Dec
10 Jul
3-4 wk
19 Jan
31 Jul
0 wk
7 Jan
21 Jul
2 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
8 – 22 Dec
23 Jun
4-6 wk
19 Jan
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
4 – 18 Dec
2 Jun
2-4 wk
1 Jan
16 Jun
3 wk before
1 Jan
6 Jun
3 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
7 Jan
16 Jun
2 wk before
7 Jan
6 Jun
2 wk before
Spinach
Spinacia oleracea
Season too short
22 – 29 Dec
25 Jul
3-4 wk
19 Jan
15 Aug
0 wk
14 Dec
5 Aug
5 wk before
Sweet potato
Ipomoea batatas
20 Feb – 6 Mar
4-6 wk
3 Apr
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
18 Dec – 1 Jan
23 May
6-8 wk
12 Feb
4 Jul
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
29 Jan – 12 Feb
30 Jun
2-4 wk
26 Feb
14 Jul
5 wk after
9 Mar
4 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
8 – 22 Dec
23 Jun
4-6 wk
19 Jan
21 Jul
0 wk
Garden pea
Pisum sativum
Season too short
22 – 29 Dec
25 Jun
3-4 wk
19 Jan
16 Jul
0 wk
7 Jan
6 Jul
2 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
27 Jan – 10 Feb
6 Jun
4-6 wk
10 Mar
4 Jul
7 wk after
Lemon balm
Melissa officinalis
Season too short
10 – 24 Nov
21 May
8-10 wk
19 Jan
16 Jul
0 wk
29 Jan
6 Jul
1 wk after
Dill
Anethum graveolens
23 Jan
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
Season too short
24 Nov – 8 Dec
4 Jun
6-8 wk
19 Jan
16 Jul
0 wk
7 Jan
6 Jul
2 wk before
Spearmint
Mentha spicata
Season too short
27 Oct – 24 Nov
21 May
8-12 wk
19 Jan
16 Jul
0 wk
29 Jan
6 Jul
1 wk after
Coriander
Coriandrum sativum
19 Jan
15 Aug
0 wk
9 Feb
5 Aug
3 wk after
Garden sage
Salvia officinalis
Season too short
10 – 24 Nov
6 May
8-10 wk
19 Jan
1 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
10 – 24 Nov
11 May
8-10 wk
19 Jan
6 Jul
0 wk
Oregano
Origanum vulgare
Season too short
24 Nov – 8 Dec
25 May
6-8 wk
19 Jan
6 Jul
0 wk
29 Jan
26 Jun
1 wk after
Parsley
Petroselinum crispum
Season too short
24 Nov – 8 Dec
25 May
6-8 wk
19 Jan
6 Jul
0 wk
7 Jan
26 Jun
2 wk before
Rosemary
Salvia rosmarinus
15 Oct – 12 Nov
7 Apr
10-14 wk
21 Jan
16 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
10 – 17 Feb
13 Jun
3-4 wk
10 Mar
4 Jul
7 wk after
Cornflower
Centaurea cyanus
Season too short
19 Jan
16 Jul
0 wk
7 Jan
6 Jul
2 wk before
Statice
Limonium sinuatum
18 Dec – 1 Jan
11 May
8-10 wk
26 Feb
6 Jul
5 wk after
Sweet William
Dianthus barbatus
24 Nov – 8 Dec
6-8 wk
19 Jan
0 wk
4 Feb
2 wk after
Snow-on-the-mountain
Euphorbia marginata
1 – 15 Jan
25 May
6-8 wk
26 Feb
6 Jul
5 wk after
3 Apr
26 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
25 Dec – 8 Jan
25 May
6-8 wk
19 Feb
6 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
4 Dec – 1 Jan
8 Jun
4-8 wk
29 Jan
6 Jul
1 wk after
29 Jan
26 Jun
1 wk after
Foxglove
Digitalis purpurea
10 – 24 Nov
8-10 wk
19 Jan
0 wk
9 Feb
3 wk after
Busy lizzie
Impatiens walleriana
16 Dec – 13 Jan
6 Jul
8-12 wk
10 Mar
31 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 Jan
4 Jun
6-8 wk
26 Feb
16 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
27 Jan – 10 Feb
7 May
4-6 wk
10 Mar
4 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Season too short
10 – 24 Nov
21 Apr
8-10 wk
19 Jan
16 Jun
0 wk
Love in a mist
Nigella damascena
19 Jan
1 Jul
0 wk
23 Jan
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
1 – 15 Jan
15 May
6-8 wk
26 Feb
26 Jun
5 wk after
3 Apr
16 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
Season too short
27 Oct – 24 Nov
21 Apr
8-12 wk
19 Jan
16 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
27 Oct – 24 Nov
22 Mar
8-12 wk
19 Jan
17 May
0 wk
Regal-foxtail
Ptilotus nobilis
16 Dec – 13 Jan
29 Apr
8-12 wk
10 Mar
24 Jun
7 wk after
Globe amaranth
Gomphrena globosa
13 – 27 Jan
13 May
6-8 wk
10 Mar
24 Jun
7 wk after
Corn poppy
Papaver rhoeas
19 Jan
16 Jul
0 wk
23 Jan
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
Season too short
27 Oct – 24 Nov
11 May
8-12 wk
19 Jan
6 Jul
0 wk
15 Jan
26 Jun
1 wk before
Flossflower
Ageratum houstonianum
30 Dec – 13 Jan
21 May
8-10 wk
10 Mar
16 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
24 Nov – 15 Dec
1 Jun
5-8 wk
19 Jan
6 Jul
0 wk
Stock
Matthiola incana
Season too short
24 Nov – 8 Dec
4 Jun
6-8 wk
19 Jan
16 Jul
0 wk
19 Jan
6 Jul
0 wk
Wormwood
Artemisia absinthium
Season too short
24 Nov – 8 Dec
5 May
6-8 wk
19 Jan
16 Jun
0 wk
19 Jan
6 Jun
0 wk
Mexican sunflower
Tithonia rotundifolia
27 Jan – 10 Feb
22 May
4-6 wk
10 Mar
19 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
10 – 24 Nov
21 May
8-10 wk
19 Jan
16 Jul
0 wk
15 Jan
6 Jul
1 wk before
Petunia
Petunia
4 Dec – 1 Jan
11 May
8-12 wk
26 Feb
6 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
Season too short
24 Nov – 8 Dec
5 May
6-8 wk
19 Jan
16 Jun
0 wk
9 Feb
6 Jun
3 wk after
Common zinnia
Zinnia elegans
15 – 29 Jan
18 Jun
4-6 wk
26 Feb
16 Jul
5 wk after
Common morning glory
Ipomoea purpurea
3 – 17 Feb
13 Jun
3-5 wk
10 Mar
4 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 Jan
8 Jun
4-6 wk
26 Feb
6 Jul
5 wk after
9 Mar
26 Jun
7 wk after
Scarlet milkweed
Asclepias curassavica
5 Jan – 2 Feb
29 May
8-12 wk
30 Mar
24 Jul
10 wk after
Bee balm
Monarda didyma
Season too short
27 Oct – 24 Nov
21 Apr
8-12 wk
19 Jan
16 Jun
0 wk
29 Jan
6 Jun
1 wk after
Yarrow
Achillea millefolium
Season too short
24 Nov – 8 Dec
5 Apr
6-8 wk
19 Jan
17 May
0 wk
19 Jan
7 May
0 wk
Safflower
Carthamus tinctorius
Season too short
19 Jan
16 Jun
0 wk
7 Jan
6 Jun
2 wk before
Iceland poppy
Papaver nudicaule
Season too short
24 Nov – 8 Dec
25 May
6-8 wk
19 Jan
6 Jul
0 wk
1 Jan
26 Jun
3 wk before
Bishop's flower
Ammi majus
Season too short
8 – 22 Dec
8 Jun
4-6 wk
19 Jan
6 Jul
0 wk
19 Jan
26 Jun
0 wk
Drumsticks
Pycnosorus globosus
16 – 30 Dec
7 Apr
10-12 wk
10 Mar
16 Jun
7 wk after
Sunflower
Helianthus annuus
29 Jan – 5 Feb
15 Jun
3-4 wk
26 Feb
6 Jul
5 wk after
23 Feb
26 Jun
5 wk after
China aster
Callistephus chinensis
1 – 15 Jan
4 Jun
6-8 wk
26 Feb
16 Jul
5 wk after
9 Mar
6 Jul
7 wk after
Annual phlox
Phlox drummondii
18 Dec – 1 Jan
4 Jun
6-8 wk
12 Feb
16 Jul
3 wk after
9 Mar
6 Jul
7 wk after
Hollyhock
Alcea rosea
24 Nov – 8 Dec
6-8 wk
19 Jan
0 wk
9 Feb
3 wk after
Alpine delphinium
Delphinium elatum
Season too short
27 Oct – 24 Nov
21 Apr
8-12 wk
19 Jan
16 Jun
0 wk
29 Jan
6 Jun
1 wk after
African marigold
Tagetes erecta
1 – 15 Jan
4 Jun
6-8 wk
26 Feb
16 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
26 Nov – 10 Dec
25 May
6-8 wk
21 Jan
6 Jul
0 wk
9 Mar
26 Jun
7 wk after
Wood sage
Salvia nemorosa
Season too short
10 – 24 Nov
11 Apr
8-10 wk
19 Jan
6 Jun
0 wk
29 Jan
27 May
1 wk after
Black-eyed susan vine
Thunbergia alata
30 Dec – 27 Jan
23 May
6-10 wk
10 Mar
4 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
19 Jan
16 Jul
0 wk
23 Jan
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
18 Dec – 1 Jan
11 May
8-10 wk
26 Feb
6 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
24 Nov – 8 Dec
5 May
6-8 wk
19 Jan
16 Jun
0 wk
19 Jan
6 Jun
0 wk