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Rel. frost
Last spring frost (0°C) 5 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 288 days 5 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)
18 Dec – 1 Jan
22 Jun
5-7 wk
5 Feb
27 Jul
0 wk
30 Jan
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
25 Dec – 8 Jan
4 Jul
4-6 wk
5 Feb
1 Aug
0 wk
30 Jan
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
21 Dec – 18 Jan
12 Mar
8-12 wk
15 Mar
7 May
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
18 Dec – 1 Jan
17 Jun
5-7 wk
5 Feb
22 Jul
0 wk
21 Dec
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
27 Feb – 6 Mar
6 May
3-4 wk
27 Mar
27 May
7 wk after
Florence Fennel
Foeniculum vulgare
20 – 27 Feb
14 Jun
4-5 wk
27 Mar
12 Jul
7 wk after
18 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
29 Mar – 5 Apr
22 May
3-4 wk
26 Apr
12 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Nov – 11 Dec
7 Apr
8-12 wk
5 Feb
2 Jun
0 wk
18 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 Jan
22 Jun
1 wk before
30 Jan
12 Jun
1 wk before
Maize
Zea mays
15 – 22 Feb
26 Apr
3-4 wk
15 Mar
17 May
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 Jan
11 Jul
3-4 wk
7 Feb
1 Aug
0 wk
18 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Feb
12 Jul
0 wk
23 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
18 Dec – 1 Jan
17 Jun
5-7 wk
5 Feb
22 Jul
0 wk
21 Dec
12 Jul
7 wk before
Potato
Solanum tuberosum
30 Dec – 13 Jan
14 Jun
4-6 wk
10 Feb
12 Jul
1 wk after
10 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Dec – 1 Jan
27 Jun
5-7 wk
5 Feb
1 Aug
0 wk
30 Jan
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
27 Feb – 6 Mar
26 Jun
3-4 wk
27 Mar
17 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 Jan
28 Jun
3-4 wk
7 Feb
19 Jul
0 wk
18 Feb
9 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
25 Dec – 8 Jan
29 Jun
4-6 wk
5 Feb
27 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 Jan
16 Jul
3-4 wk
5 Feb
6 Aug
0 wk
30 Jan
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
25 Dec – 8 Jan
29 Jun
4-6 wk
5 Feb
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Dec – 9 Jan
8 Jun
2-4 wk
23 Jan
22 Jun
2 wk before
23 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 Jan
22 Jun
1 wk before
30 Jan
12 Jun
1 wk before
Spinach
Spinacia oleracea
8 – 15 Jan
31 Jul
3-4 wk
5 Feb
21 Aug
0 wk
16 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
9 – 23 Mar
4-6 wk
20 Apr
11 wk after
Garden tomato
Solanum lycopersicum
18 Jan – 1 Feb
5 Apr
6-8 wk
15 Mar
17 May
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 Feb – 1 Mar
28 Jun
2-4 wk
15 Mar
12 Jul
5 wk after
18 Mar
2 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
25 Dec – 8 Jan
29 Jun
4-6 wk
5 Feb
27 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 Jan
1 Jul
3-4 wk
5 Feb
22 Jul
0 wk
30 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
13 – 27 Feb
4 Jun
4-6 wk
27 Mar
2 Jul
7 wk after
Lemon balm
Melissa officinalis
27 Nov – 11 Dec
27 May
8-10 wk
5 Feb
22 Jul
0 wk
3 Mar
12 Jul
4 wk after
Dill
Anethum graveolens
30 Jan
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
11 – 25 Dec
10 Jun
6-8 wk
5 Feb
22 Jul
0 wk
2 Jan
12 Jul
5 wk before
Spearmint
Mentha spicata
13 Nov – 11 Dec
27 May
8-12 wk
5 Feb
22 Jul
0 wk
3 Mar
12 Jul
4 wk after
Coriander
Coriandrum sativum
5 Feb
21 Aug
0 wk
18 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
27 Nov – 11 Dec
12 May
8-10 wk
5 Feb
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
27 Nov – 11 Dec
17 May
8-10 wk
5 Feb
12 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Dec
31 May
6-8 wk
5 Feb
12 Jul
0 wk
3 Mar
2 Jul
4 wk after
Parsley
Petroselinum crispum
11 – 25 Dec
31 May
6-8 wk
5 Feb
12 Jul
0 wk
30 Jan
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
1 – 29 Nov
13 Apr
10-14 wk
7 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
27 Feb – 6 Mar
11 Jun
3-4 wk
27 Mar
2 Jul
7 wk after
Cornflower
Centaurea cyanus
5 Feb
22 Jul
0 wk
30 Jan
12 Jul
1 wk before
Statice
Limonium sinuatum
4 – 18 Jan
14 May
8-10 wk
15 Mar
9 Jul
5 wk after
Sweet William
Dianthus barbatus
11 – 25 Dec
6-8 wk
5 Feb
0 wk
10 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
18 Jan – 1 Feb
28 May
6-8 wk
15 Mar
9 Jul
5 wk after
20 Apr
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Jan
31 May
6-8 wk
8 Mar
12 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
6 Jan – 3 Feb
14 Jun
4-8 wk
3 Mar
12 Jul
4 wk after
3 Mar
2 Jul
4 wk after
Foxglove
Digitalis purpurea
27 Nov – 11 Dec
8-10 wk
5 Feb
0 wk
18 Feb
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Jan
8 Jul
8-12 wk
27 Mar
2 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
18 Jan – 1 Feb
7 Jun
6-8 wk
15 Mar
19 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
13 – 27 Feb
5 May
4-6 wk
27 Mar
2 Jun
7 wk after
Chinese lantern
Physalis alkekengi
29 Nov – 13 Dec
27 Apr
8-10 wk
7 Feb
22 Jun
0 wk
Love in a mist
Nigella damascena
5 Feb
7 Jul
0 wk
30 Jan
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
18 Jan – 1 Feb
18 May
6-8 wk
15 Mar
29 Jun
5 wk after
20 Apr
19 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
15 Nov – 13 Dec
27 Apr
8-12 wk
7 Feb
22 Jun
0 wk
Cardoon
Cynara cardunculus
21 Dec – 18 Jan
28 Mar
8-12 wk
15 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
2 – 30 Jan
27 Apr
8-12 wk
27 Mar
22 Jun
7 wk after
Globe amaranth
Gomphrena globosa
30 Jan – 13 Feb
11 May
6-8 wk
27 Mar
22 Jun
7 wk after
Corn poppy
Papaver rhoeas
5 Feb
22 Jul
0 wk
30 Jan
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
13 Nov – 11 Dec
17 May
8-12 wk
5 Feb
12 Jul
0 wk
10 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Jan
24 May
8-10 wk
27 Mar
19 Jul
7 wk after
Sweet pea
Lathyrus odoratus
11 Dec – 1 Jan
7 Jun
5-8 wk
5 Feb
12 Jul
0 wk
Stock
Matthiola incana
11 – 25 Dec
10 Jun
6-8 wk
5 Feb
22 Jul
0 wk
18 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
11 – 25 Dec
11 May
6-8 wk
5 Feb
22 Jun
0 wk
23 Jan
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
13 – 27 Feb
20 May
4-6 wk
27 Mar
17 Jun
7 wk after
Garden pansy
Viola × wittrockiana
27 Nov – 11 Dec
27 May
8-10 wk
5 Feb
22 Jul
0 wk
10 Feb
12 Jul
1 wk after
Petunia
Petunia
21 Dec – 18 Jan
14 May
8-12 wk
15 Mar
9 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
13 – 27 Dec
11 May
6-8 wk
7 Feb
22 Jun
0 wk
18 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
1 – 15 Feb
20 Jun
4-6 wk
15 Mar
18 Jul
5 wk after
Common morning glory
Ipomoea purpurea
20 Feb – 6 Mar
11 Jun
3-5 wk
27 Mar
2 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 Feb
14 Jun
4-6 wk
15 Mar
12 Jul
5 wk after
18 Mar
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
22 Jan – 19 Feb
27 May
8-12 wk
16 Apr
22 Jul
10 wk after
Bee balm
Monarda didyma
13 Nov – 11 Dec
27 Apr
8-12 wk
5 Feb
22 Jun
0 wk
3 Mar
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
11 – 25 Dec
11 Apr
6-8 wk
5 Feb
23 May
0 wk
23 Jan
13 May
2 wk before
Safflower
Carthamus tinctorius
5 Feb
22 Jun
0 wk
30 Jan
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Dec
31 May
6-8 wk
5 Feb
12 Jul
0 wk
21 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
25 Dec – 8 Jan
14 Jun
4-6 wk
5 Feb
12 Jul
0 wk
18 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
2 – 16 Jan
9 Apr
10-12 wk
27 Mar
18 Jun
7 wk after
Sunflower
Helianthus annuus
15 – 22 Feb
21 Jun
3-4 wk
15 Mar
12 Jul
5 wk after
3 Mar
2 Jul
4 wk after
China aster
Callistephus chinensis
18 Jan – 1 Feb
10 Jun
6-8 wk
15 Mar
22 Jul
5 wk after
18 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Jan
7 Jun
6-8 wk
1 Mar
19 Jul
3 wk after
18 Mar
9 Jul
6 wk after
Hollyhock
Alcea rosea
11 – 25 Dec
6-8 wk
5 Feb
0 wk
18 Feb
2 wk after
Alpine delphinium
Delphinium elatum
13 Nov – 11 Dec
27 Apr
8-12 wk
5 Feb
22 Jun
0 wk
3 Mar
12 Jun
4 wk after
African marigold
Tagetes erecta
18 Jan – 1 Feb
7 Jun
6-8 wk
15 Mar
19 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Dec
31 May
6-8 wk
7 Feb
12 Jul
0 wk
18 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
27 Nov – 11 Dec
17 Apr
8-10 wk
5 Feb
12 Jun
0 wk
3 Mar
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
16 Jan – 13 Feb
21 May
6-10 wk
27 Mar
2 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
5 Feb
22 Jul
0 wk
30 Jan
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
4 – 18 Jan
17 May
8-10 wk
15 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
11 – 25 Dec
11 May
6-8 wk
5 Feb
22 Jun
0 wk
23 Jan
12 Jun
2 wk before