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Rel. frost
Last spring frost (0°C) 17 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 279 days 17 Feb – 23 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)
30 Dec – 13 Jan
21 Jun
5-7 wk
17 Feb
26 Jul
0 wk
11 Feb
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 Jan
3 Jul
4-6 wk
17 Feb
31 Jul
0 wk
11 Feb
21 Jul
1 wk before
Chili pepper
Capsicum annuum
Fleece
2 – 30 Jan
15 Apr
8-12 wk
27 Mar
10 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Dec – 13 Jan
16 Jun
5-7 wk
17 Feb
21 Jul
0 wk
4 Feb
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
11 – 18 Mar
9 Jun
3-4 wk
8 Apr
30 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
4 – 11 Mar
13 Jun
4-5 wk
8 Apr
11 Jul
7 wk after
30 Mar
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
10 – 17 Apr
22 May
3-4 wk
8 May
12 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Nov – 23 Dec
6 Apr
8-12 wk
17 Feb
1 Jun
0 wk
2 Mar
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
11 Feb
21 Jun
1 wk before
11 Feb
11 Jun
1 wk before
Maize
Zea mays
27 Feb – 6 Mar
30 May
3-4 wk
27 Mar
20 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
22 – 29 Jan
10 Jul
3-4 wk
19 Feb
31 Jul
0 wk
2 Mar
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Feb
11 Jul
0 wk
4 Feb
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Dec – 13 Jan
16 Jun
5-7 wk
17 Feb
21 Jul
0 wk
4 Feb
11 Jul
2 wk before
Potato
Solanum tuberosum
11 – 25 Jan
13 Jun
4-6 wk
22 Feb
11 Jul
1 wk after
22 Feb
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Dec – 13 Jan
26 Jun
5-7 wk
17 Feb
31 Jul
0 wk
11 Feb
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
11 – 18 Mar
26 Jun
3-4 wk
8 Apr
17 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
22 – 29 Jan
3 Jul
3-4 wk
19 Feb
24 Jul
0 wk
2 Mar
14 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 Jan
28 Jun
4-6 wk
17 Feb
26 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 Jan
15 Jul
3-4 wk
17 Feb
5 Aug
0 wk
11 Feb
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 Jan
28 Jun
4-6 wk
17 Feb
26 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 Jan
7 Jun
2-4 wk
4 Feb
21 Jun
2 wk before
4 Feb
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
11 Feb
21 Jun
1 wk before
11 Feb
11 Jun
1 wk before
Spinach
Spinacia oleracea
20 – 27 Jan
30 Jul
3-4 wk
17 Feb
20 Aug
0 wk
28 Jan
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
21 Mar – 4 Apr
4-6 wk
2 May
11 wk after
Garden tomato
Solanum lycopersicum
30 Jan – 13 Feb
9 May
6-8 wk
27 Mar
20 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
27 Feb – 13 Mar
28 Jun
2-4 wk
27 Mar
12 Jul
5 wk after
30 Mar
2 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 Jan
28 Jun
4-6 wk
17 Feb
26 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 Jan
30 Jun
3-4 wk
17 Feb
21 Jul
0 wk
11 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
25 Feb – 11 Mar
4 Jun
4-6 wk
8 Apr
2 Jul
7 wk after
Lemon balm
Melissa officinalis
9 – 23 Dec
26 May
8-10 wk
17 Feb
21 Jul
0 wk
15 Mar
11 Jul
4 wk after
Dill
Anethum graveolens
11 Feb
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
23 Dec – 6 Jan
9 Jun
6-8 wk
17 Feb
21 Jul
0 wk
14 Jan
11 Jul
5 wk before
Spearmint
Mentha spicata
25 Nov – 23 Dec
26 May
8-12 wk
17 Feb
21 Jul
0 wk
15 Mar
11 Jul
4 wk after
Coriander
Coriandrum sativum
17 Feb
20 Aug
0 wk
2 Mar
10 Aug
2 wk after
Garden sage
Salvia officinalis
11 – 25 Dec
11 May
8-10 wk
19 Feb
6 Jul
0 wk
Common thyme
Thymus vulgaris
9 – 23 Dec
16 May
8-10 wk
17 Feb
11 Jul
0 wk
Oregano
Origanum vulgare
23 Dec – 6 Jan
30 May
6-8 wk
17 Feb
11 Jul
0 wk
15 Mar
1 Jul
4 wk after
Parsley
Petroselinum crispum
23 Dec – 6 Jan
30 May
6-8 wk
17 Feb
11 Jul
0 wk
11 Feb
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
13 Nov – 11 Dec
12 Apr
10-14 wk
19 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
11 – 18 Mar
11 Jun
3-4 wk
8 Apr
2 Jul
7 wk after
Cornflower
Centaurea cyanus
17 Feb
21 Jul
0 wk
11 Feb
11 Jul
1 wk before
Statice
Limonium sinuatum
16 – 30 Jan
16 May
8-10 wk
27 Mar
11 Jul
5 wk after
Sweet William
Dianthus barbatus
23 Dec – 6 Jan
6-8 wk
17 Feb
0 wk
22 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
30 Jan – 13 Feb
30 May
6-8 wk
27 Mar
11 Jul
5 wk after
2 May
1 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
23 Jan – 6 Feb
30 May
6-8 wk
20 Mar
11 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
18 Jan – 15 Feb
13 Jun
4-8 wk
15 Mar
11 Jul
4 wk after
15 Mar
1 Jul
4 wk after
Foxglove
Digitalis purpurea
9 – 23 Dec
8-10 wk
17 Feb
0 wk
2 Mar
2 wk after
Busy lizzie
Impatiens walleriana
14 Jan – 11 Feb
3 Jul
8-12 wk
8 Apr
28 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
30 Jan – 13 Feb
9 Jun
6-8 wk
27 Mar
21 Jul
5 wk after
Hyacinth bean
Dolichos lablab
17 – 31 Mar
23 Apr
4-6 wk
28 Apr
21 May
10 wk after
Chinese lantern
Physalis alkekengi
11 – 25 Dec
26 Apr
8-10 wk
19 Feb
21 Jun
0 wk
Love in a mist
Nigella damascena
17 Feb
6 Jul
0 wk
11 Feb
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
30 Jan – 13 Feb
20 May
6-8 wk
27 Mar
1 Jul
5 wk after
2 May
21 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
27 Nov – 25 Dec
26 Apr
8-12 wk
19 Feb
21 Jun
0 wk
Cardoon
Cynara cardunculus
2 – 30 Jan
27 Mar
8-12 wk
27 Mar
22 May
5 wk after
Regal-foxtail
Ptilotus nobilis
14 Jan – 11 Feb
27 Apr
8-12 wk
8 Apr
22 Jun
7 wk after
Globe amaranth
Gomphrena globosa
11 – 25 Feb
11 May
6-8 wk
8 Apr
22 Jun
7 wk after
Corn poppy
Papaver rhoeas
17 Feb
21 Jul
0 wk
11 Feb
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
25 Nov – 23 Dec
16 May
8-12 wk
17 Feb
11 Jul
0 wk
22 Feb
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
28 Jan – 11 Feb
26 May
8-10 wk
8 Apr
21 Jul
7 wk after
Sweet pea
Lathyrus odoratus
23 Dec – 13 Jan
6 Jun
5-8 wk
17 Feb
11 Jul
0 wk
Stock
Matthiola incana
23 Dec – 6 Jan
9 Jun
6-8 wk
17 Feb
21 Jul
0 wk
2 Mar
11 Jul
2 wk after
Wormwood
Artemisia absinthium
23 Dec – 6 Jan
10 May
6-8 wk
17 Feb
21 Jun
0 wk
2 Mar
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
25 Feb – 11 Mar
20 May
4-6 wk
8 Apr
17 Jun
7 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Dec
26 May
8-10 wk
17 Feb
21 Jul
0 wk
22 Feb
11 Jul
1 wk after
Petunia
Petunia
2 – 30 Jan
16 May
8-12 wk
27 Mar
11 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
25 Dec – 8 Jan
10 May
6-8 wk
19 Feb
21 Jun
0 wk
30 Mar
11 Jun
6 wk after
Common zinnia
Zinnia elegans
13 – 27 Feb
15 Jun
4-6 wk
27 Mar
13 Jul
5 wk after
Common morning glory
Ipomoea purpurea
4 – 18 Mar
11 Jun
3-5 wk
8 Apr
2 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
13 – 27 Feb
13 Jun
4-6 wk
27 Mar
11 Jul
5 wk after
30 Mar
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
3 Feb – 3 Mar
27 May
8-12 wk
28 Apr
22 Jul
10 wk after
Bee balm
Monarda didyma
25 Nov – 23 Dec
26 Apr
8-12 wk
17 Feb
21 Jun
0 wk
15 Mar
11 Jun
4 wk after
Yarrow
Achillea millefolium
23 Dec – 6 Jan
10 Apr
6-8 wk
17 Feb
22 May
0 wk
2 Mar
12 May
2 wk after
Safflower
Carthamus tinctorius
17 Feb
21 Jun
0 wk
11 Feb
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
23 Dec – 6 Jan
30 May
6-8 wk
17 Feb
11 Jul
0 wk
2 Jan
1 Jul
7 wk before
Bishop's flower
Ammi majus
6 – 20 Jan
13 Jun
4-6 wk
17 Feb
11 Jul
0 wk
2 Mar
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
14 – 28 Jan
4 Apr
10-12 wk
8 Apr
13 Jun
7 wk after
Sunflower
Helianthus annuus
27 Feb – 6 Mar
20 Jun
3-4 wk
27 Mar
11 Jul
5 wk after
15 Mar
1 Jul
4 wk after
China aster
Callistephus chinensis
30 Jan – 13 Feb
9 Jun
6-8 wk
27 Mar
21 Jul
5 wk after
30 Mar
11 Jul
6 wk after
Annual phlox
Phlox drummondii
16 – 30 Jan
9 Jun
6-8 wk
13 Mar
21 Jul
3 wk after
30 Mar
11 Jul
6 wk after
Hollyhock
Alcea rosea
23 Dec – 6 Jan
6-8 wk
17 Feb
0 wk
2 Mar
2 wk after
Alpine delphinium
Delphinium elatum
25 Nov – 23 Dec
26 Apr
8-12 wk
17 Feb
21 Jun
0 wk
15 Mar
11 Jun
4 wk after
African marigold
Tagetes erecta
30 Jan – 13 Feb
9 Jun
6-8 wk
27 Mar
21 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
25 Dec – 8 Jan
30 May
6-8 wk
19 Feb
11 Jul
0 wk
30 Mar
1 Jul
6 wk after
Wood sage
Salvia nemorosa
9 – 23 Dec
16 Apr
8-10 wk
17 Feb
11 Jun
0 wk
15 Mar
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
28 Jan – 25 Feb
21 May
6-10 wk
8 Apr
2 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
17 Feb
21 Jul
0 wk
11 Feb
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
16 – 30 Jan
16 May
8-10 wk
27 Mar
11 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
23 Dec – 6 Jan
10 May
6-8 wk
17 Feb
21 Jun
0 wk
4 Feb
11 Jun
2 wk before