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Rel. frost
Last spring frost (0°C) 29 Jan Frost 9 of 10 years · 20 years of data
Frost-free season 290 days 29 Jan – 15 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
11 – 25 Dec
22 Jun
5-7 wk
29 Jan
27 Jul
0 wk
26 Dec
17 Jul
5 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
18 Dec – 1 Jan
4 Jul
4-6 wk
29 Jan
1 Aug
0 wk
26 Dec
22 Jul
5 wk before
Chili pepper
Capsicum annuum
Fleece
14 Dec – 11 Jan
13 Apr
8-12 wk
8 Mar
8 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
11 – 25 Dec
17 Jun
5-7 wk
29 Jan
22 Jul
0 wk
14 Dec
12 Jul
7 wk before
Garden cucumber
Cucumis sativus
20 – 27 Feb
7 Jun
3-4 wk
20 Mar
28 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
13 – 20 Feb
14 Jun
4-5 wk
20 Mar
12 Jul
7 wk after
11 Mar
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
22 – 29 Mar
26 May
3-4 wk
19 Apr
16 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
6 Nov – 4 Dec
7 Apr
8-12 wk
29 Jan
2 Jun
0 wk
11 Feb
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 Jan
22 Jun
1 wk before
23 Jan
12 Jun
1 wk before
Maize
Zea mays
8 – 15 Feb
28 May
3-4 wk
8 Mar
18 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 Jan
11 Jul
3-4 wk
31 Jan
1 Aug
0 wk
11 Feb
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 Jan
12 Jul
0 wk
16 Jan
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
11 – 25 Dec
17 Jun
5-7 wk
29 Jan
22 Jul
0 wk
14 Dec
12 Jul
7 wk before
Potato
Solanum tuberosum
23 Dec – 6 Jan
14 Jun
4-6 wk
3 Feb
12 Jul
1 wk after
3 Feb
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Dec
27 Jun
5-7 wk
29 Jan
1 Aug
0 wk
23 Jan
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
20 – 27 Feb
30 Jun
3-4 wk
20 Mar
21 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 Jan
4 Jul
3-4 wk
31 Jan
25 Jul
0 wk
11 Feb
15 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
18 Dec – 1 Jan
29 Jun
4-6 wk
29 Jan
27 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 Jan
16 Jul
3-4 wk
29 Jan
6 Aug
0 wk
23 Jan
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
18 Dec – 1 Jan
29 Jun
4-6 wk
29 Jan
27 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
19 Dec – 2 Jan
8 Jun
2-4 wk
16 Jan
22 Jun
2 wk before
16 Jan
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 Jan
22 Jun
1 wk before
23 Jan
12 Jun
1 wk before
Spinach
Spinacia oleracea
1 – 8 Jan
31 Jul
3-4 wk
29 Jan
21 Aug
0 wk
9 Jan
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
2 – 16 Mar
4-6 wk
13 Apr
11 wk after
Garden tomato
Solanum lycopersicum
11 – 25 Jan
7 May
6-8 wk
8 Mar
18 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
8 – 22 Feb
2 Jul
2-4 wk
8 Mar
16 Jul
5 wk after
11 Mar
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
18 Dec – 1 Jan
29 Jun
4-6 wk
29 Jan
27 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 Jan
1 Jul
3-4 wk
29 Jan
22 Jul
0 wk
23 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
6 – 20 Feb
8 Jun
4-6 wk
20 Mar
6 Jul
7 wk after
Lemon balm
Melissa officinalis
20 Nov – 4 Dec
27 May
8-10 wk
29 Jan
22 Jul
0 wk
24 Feb
12 Jul
4 wk after
Dill
Anethum graveolens
23 Jan
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
Season too short
4 – 18 Dec
10 Jun
6-8 wk
29 Jan
22 Jul
0 wk
26 Dec
12 Jul
5 wk before
Spearmint
Mentha spicata
Season too short
6 Nov – 4 Dec
27 May
8-12 wk
29 Jan
22 Jul
0 wk
28 Jan
12 Jul
0 wk
Coriander
Coriandrum sativum
29 Jan
21 Aug
0 wk
11 Feb
11 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
20 Nov – 4 Dec
12 May
8-10 wk
29 Jan
7 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
20 Nov – 4 Dec
17 May
8-10 wk
29 Jan
12 Jul
0 wk
Oregano
Origanum vulgare
Season too short
4 – 18 Dec
31 May
6-8 wk
29 Jan
12 Jul
0 wk
28 Jan
2 Jul
0 wk
Parsley
Petroselinum crispum
Season too short
4 – 18 Dec
31 May
6-8 wk
29 Jan
12 Jul
0 wk
26 Dec
2 Jul
5 wk before
Rosemary
Salvia rosmarinus
25 Oct – 22 Nov
13 Apr
10-14 wk
31 Jan
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
20 – 27 Feb
15 Jun
3-4 wk
20 Mar
6 Jul
7 wk after
Cornflower
Centaurea cyanus
Season too short
29 Jan
22 Jul
0 wk
26 Dec
12 Jul
5 wk before
Statice
Limonium sinuatum
28 Dec – 11 Jan
16 May
8-10 wk
8 Mar
11 Jul
5 wk after
Sweet William
Dianthus barbatus
4 – 18 Dec
6-8 wk
29 Jan
0 wk
3 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 Jan
30 May
6-8 wk
8 Mar
11 Jul
5 wk after
13 Apr
1 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Jan
31 May
6-8 wk
1 Mar
12 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
30 Dec – 27 Jan
14 Jun
4-8 wk
24 Feb
12 Jul
4 wk after
24 Feb
2 Jul
4 wk after
Foxglove
Digitalis purpurea
20 Nov – 4 Dec
8-10 wk
29 Jan
0 wk
11 Feb
2 wk after
Busy lizzie
Impatiens walleriana
26 Dec – 23 Jan
7 Jul
8-12 wk
20 Mar
1 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Jan
9 Jun
6-8 wk
8 Mar
21 Jul
5 wk after
Hyacinth bean
Dolichos lablab
26 Feb – 12 Mar
21 Apr
4-6 wk
9 Apr
19 May
10 wk after
Chinese lantern
Physalis alkekengi
22 Nov – 6 Dec
27 Apr
8-10 wk
31 Jan
22 Jun
0 wk
Love in a mist
Nigella damascena
29 Jan
7 Jul
0 wk
23 Jan
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
11 – 25 Jan
20 May
6-8 wk
8 Mar
1 Jul
5 wk after
13 Apr
21 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
8 Nov – 6 Dec
27 Apr
8-12 wk
31 Jan
22 Jun
0 wk
Cardoon
Cynara cardunculus
14 Dec – 11 Jan
28 Mar
8-12 wk
8 Mar
23 May
5 wk after
Regal-foxtail
Ptilotus nobilis
26 Dec – 23 Jan
1 May
8-12 wk
20 Mar
26 Jun
7 wk after
Globe amaranth
Gomphrena globosa
23 Jan – 6 Feb
15 May
6-8 wk
20 Mar
26 Jun
7 wk after
Corn poppy
Papaver rhoeas
29 Jan
22 Jul
0 wk
23 Jan
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
6 Nov – 4 Dec
17 May
8-12 wk
29 Jan
12 Jul
0 wk
3 Feb
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
9 – 23 Jan
26 May
8-10 wk
20 Mar
21 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
4 – 25 Dec
7 Jun
5-8 wk
29 Jan
12 Jul
0 wk
Stock
Matthiola incana
4 – 18 Dec
10 Jun
6-8 wk
29 Jan
22 Jul
0 wk
11 Feb
12 Jul
2 wk after
Wormwood
Artemisia absinthium
Season too short
4 – 18 Dec
11 May
6-8 wk
29 Jan
22 Jun
0 wk
16 Jan
12 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
6 – 20 Feb
24 May
4-6 wk
20 Mar
21 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
20 Nov – 4 Dec
27 May
8-10 wk
29 Jan
22 Jul
0 wk
9 Jan
12 Jul
3 wk before
Petunia
Petunia
14 Dec – 11 Jan
16 May
8-12 wk
8 Mar
11 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Dec
11 May
6-8 wk
31 Jan
22 Jun
0 wk
11 Mar
12 Jun
6 wk after
Common zinnia
Zinnia elegans
25 Jan – 8 Feb
19 Jun
4-6 wk
8 Mar
17 Jul
5 wk after
Common morning glory
Ipomoea purpurea
13 – 27 Feb
15 Jun
3-5 wk
20 Mar
6 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
25 Jan – 8 Feb
14 Jun
4-6 wk
8 Mar
12 Jul
5 wk after
11 Mar
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
15 Jan – 12 Feb
31 May
8-12 wk
9 Apr
26 Jul
10 wk after
Bee balm
Monarda didyma
6 Nov – 4 Dec
27 Apr
8-12 wk
29 Jan
22 Jun
0 wk
24 Feb
12 Jun
4 wk after
Yarrow
Achillea millefolium
Season too short
4 – 18 Dec
11 Apr
6-8 wk
29 Jan
23 May
0 wk
16 Jan
13 May
2 wk before
Safflower
Carthamus tinctorius
29 Jan
22 Jun
0 wk
23 Jan
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Dec
31 May
6-8 wk
29 Jan
12 Jul
0 wk
14 Dec
2 Jul
7 wk before
Bishop's flower
Ammi majus
18 Dec – 1 Jan
14 Jun
4-6 wk
29 Jan
12 Jul
0 wk
11 Feb
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
26 Dec – 9 Jan
8 Apr
10-12 wk
20 Mar
17 Jun
7 wk after
Sunflower
Helianthus annuus
8 – 15 Feb
21 Jun
3-4 wk
8 Mar
12 Jul
5 wk after
24 Feb
2 Jul
4 wk after
China aster
Callistephus chinensis
11 – 25 Jan
10 Jun
6-8 wk
8 Mar
22 Jul
5 wk after
11 Mar
12 Jul
6 wk after
Annual phlox
Phlox drummondii
28 Dec – 11 Jan
9 Jun
6-8 wk
22 Feb
21 Jul
3 wk after
11 Mar
11 Jul
6 wk after
Hollyhock
Alcea rosea
4 – 18 Dec
6-8 wk
29 Jan
0 wk
11 Feb
2 wk after
Alpine delphinium
Delphinium elatum
6 Nov – 4 Dec
27 Apr
8-12 wk
29 Jan
22 Jun
0 wk
24 Feb
12 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Jan
9 Jun
6-8 wk
8 Mar
21 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Dec
31 May
6-8 wk
31 Jan
12 Jul
0 wk
11 Mar
2 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Nov – 4 Dec
17 Apr
8-10 wk
29 Jan
12 Jun
0 wk
24 Feb
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
9 Jan – 6 Feb
25 May
6-10 wk
20 Mar
6 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
29 Jan
22 Jul
0 wk
23 Jan
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
28 Dec – 11 Jan
17 May
8-10 wk
8 Mar
12 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
4 – 18 Dec
11 May
6-8 wk
29 Jan
22 Jun
0 wk
16 Jan
12 Jun
2 wk before