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Rel. frost
Last spring frost (0°C) 8 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 243 days 8 Mar – 6 Nov
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date

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