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Rel. frost
Last spring frost (0°C) 13 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 253 days 13 Mar – 21 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
23 Jan – 6 Feb
13 Jun
5-7 wk
13 Mar
18 Jul
0 wk
4 Mar
8 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
30 Jan – 13 Feb
25 Jun
4-6 wk
13 Mar
23 Jul
0 wk
4 Mar
13 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
12 Jan – 9 Feb
1 May
8-12 wk
6 Apr
26 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
23 Jan – 6 Feb
8 Jun
5-7 wk
13 Mar
13 Jul
0 wk
25 Feb
3 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
23 – 30 Mar
25 Jun
3-4 wk
20 Apr
16 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
28 Mar – 4 Apr
5 Jun
4-5 wk
2 May
3 Jul
7 wk after
25 Apr
23 Jun
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
14 – 21 Apr
2 Jun
3-4 wk
12 May
23 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
19 Dec – 16 Jan
29 Mar
8-12 wk
13 Mar
24 May
0 wk
13 Mar
14 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
4 Mar
13 Jun
1 wk before
4 Mar
3 Jun
1 wk before
Maize
Zea mays
Fleece
9 – 16 Mar
15 Jun
3-4 wk
6 Apr
6 Jul
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Feb
2 Jul
3-4 wk
15 Mar
23 Jul
0 wk
26 Mar
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Mar
3 Jul
0 wk
13 Mar
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
23 Jan – 6 Feb
8 Jun
5-7 wk
13 Mar
13 Jul
0 wk
25 Feb
3 Jul
2 wk before
Potato
Solanum tuberosum
Season too short
27 Jan – 10 Feb
5 Jun
4-6 wk
10 Mar
3 Jul
0 wk
10 Mar
23 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
Season too short
23 Jan – 6 Feb
18 Jun
5-7 wk
13 Mar
23 Jul
0 wk
4 Mar
13 Jul
1 wk before
Pumpkin
Cucurbita pepo
4 – 11 Apr
30 Jun
3-4 wk
2 May
21 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
13 – 20 Feb
2 Jul
3-4 wk
13 Mar
23 Jul
0 wk
13 Mar
13 Jul
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
30 Jan – 13 Feb
20 Jun
4-6 wk
13 Mar
18 Jul
0 wk
Lettuce
Lactuca sativa
Season too short
13 – 20 Feb
7 Jul
3-4 wk
13 Mar
28 Jul
0 wk
4 Mar
18 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
30 Jan – 13 Feb
20 Jun
4-6 wk
13 Mar
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
28 Jan – 11 Feb
30 May
2-4 wk
25 Feb
13 Jun
2 wk before
25 Feb
3 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
4 Mar
13 Jun
1 wk before
4 Mar
3 Jun
1 wk before
Spinach
Spinacia oleracea
Season too short
13 – 20 Feb
22 Jul
3-4 wk
13 Mar
12 Aug
0 wk
12 Jan
2 Aug
9 wk before
Sweet potato
Ipomoea batatas
7 – 21 Apr
4-6 wk
19 May
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
9 – 23 Feb
25 May
6-8 wk
6 Apr
6 Jul
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
23 Mar – 6 Apr
2 Jul
2-4 wk
20 Apr
16 Jul
5 wk after
25 Apr
6 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
30 Jan – 13 Feb
20 Jun
4-6 wk
13 Mar
18 Jul
0 wk
Garden pea
Pisum sativum
Season too short
13 – 20 Feb
22 Jun
3-4 wk
13 Mar
13 Jul
0 wk
4 Mar
3 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
21 Mar – 4 Apr
8 Jun
4-6 wk
2 May
6 Jul
7 wk after
Lemon balm
Melissa officinalis
Season too short
2 – 16 Jan
18 May
8-10 wk
13 Mar
13 Jul
0 wk
19 Mar
3 Jul
1 wk after
Dill
Anethum graveolens
14 Mar
23 Jul
0 wk
Wild chives
Allium schoenoprasum
Season too short
16 – 30 Jan
1 Jun
6-8 wk
13 Mar
13 Jul
0 wk
4 Mar
3 Jul
1 wk before
Spearmint
Mentha spicata
Season too short
19 Dec – 16 Jan
18 May
8-12 wk
13 Mar
13 Jul
0 wk
19 Mar
3 Jul
1 wk after
Coriander
Coriandrum sativum
13 Mar
12 Aug
0 wk
26 Mar
2 Aug
2 wk after
Garden sage
Salvia officinalis
Season too short
2 – 16 Jan
3 May
8-10 wk
13 Mar
28 Jun
0 wk
Common thyme
Thymus vulgaris
Season too short
2 – 16 Jan
8 May
8-10 wk
13 Mar
3 Jul
0 wk
Oregano
Origanum vulgare
Season too short
16 – 30 Jan
22 May
6-8 wk
13 Mar
3 Jul
0 wk
19 Mar
23 Jun
1 wk after
Parsley
Petroselinum crispum
Season too short
16 – 30 Jan
22 May
6-8 wk
13 Mar
3 Jul
0 wk
4 Mar
23 Jun
1 wk before
Rosemary
Salvia rosmarinus
7 Dec – 4 Jan
4 Apr
10-14 wk
15 Mar
13 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
4 – 11 Apr
15 Jun
3-4 wk
2 May
6 Jul
7 wk after
Cornflower
Centaurea cyanus
Season too short
13 Mar
13 Jul
0 wk
4 Mar
3 Jul
1 wk before
Statice
Limonium sinuatum
9 – 23 Feb
8 May
8-10 wk
20 Apr
3 Jul
5 wk after
Sweet William
Dianthus barbatus
16 – 30 Jan
6-8 wk
13 Mar
0 wk
23 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
23 Feb – 9 Mar
22 May
6-8 wk
20 Apr
3 Jul
5 wk after
19 May
23 Jun
10 wk after
Pinnate dahlia
Dahlia × pinnata
16 Feb – 2 Mar
22 May
6-8 wk
13 Apr
3 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
22 Jan – 19 Feb
5 Jun
4-8 wk
19 Mar
3 Jul
1 wk after
19 Mar
23 Jun
1 wk after
Foxglove
Digitalis purpurea
2 – 16 Jan
8-10 wk
13 Mar
0 wk
26 Mar
2 wk after
Busy lizzie
Impatiens walleriana
7 Feb – 7 Mar
3 Jul
8-12 wk
2 May
28 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
23 Feb – 9 Mar
1 Jun
6-8 wk
20 Apr
13 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
21 Mar – 4 Apr
9 May
4-6 wk
2 May
6 Jun
7 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Jan
18 Apr
8-10 wk
15 Mar
13 Jun
0 wk
Love in a mist
Nigella damascena
13 Mar
28 Jun
0 wk
14 Mar
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
23 Feb – 9 Mar
12 May
6-8 wk
20 Apr
23 Jun
5 wk after
19 May
13 Jun
10 wk after
Purple-top vervain
Verbena bonariensis
21 Dec – 18 Jan
18 Apr
8-12 wk
15 Mar
13 Jun
0 wk
Cardoon
Cynara cardunculus
26 Jan – 23 Feb
19 Mar
8-12 wk
20 Apr
14 May
5 wk after
Regal-foxtail
Ptilotus nobilis
7 Feb – 7 Mar
1 May
8-12 wk
2 May
26 Jun
7 wk after
Globe amaranth
Gomphrena globosa
7 – 21 Mar
15 May
6-8 wk
2 May
26 Jun
7 wk after
Corn poppy
Papaver rhoeas
13 Mar
13 Jul
0 wk
14 Mar
3 Jul
0 wk
Snapdragon
Antirrhinum majus
Season too short
19 Dec – 16 Jan
8 May
8-12 wk
13 Mar
3 Jul
0 wk
10 Mar
23 Jun
0 wk
Flossflower
Ageratum houstonianum
21 Feb – 7 Mar
18 May
8-10 wk
2 May
13 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
16 Jan – 6 Feb
29 May
5-8 wk
13 Mar
3 Jul
0 wk
Stock
Matthiola incana
Season too short
16 – 30 Jan
1 Jun
6-8 wk
13 Mar
13 Jul
0 wk
13 Mar
3 Jul
0 wk
Wormwood
Artemisia absinthium
Season too short
16 – 30 Jan
2 May
6-8 wk
13 Mar
13 Jun
0 wk
13 Mar
3 Jun
0 wk
Mexican sunflower
Tithonia rotundifolia
21 Mar – 4 Apr
24 May
4-6 wk
2 May
21 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
2 – 16 Jan
18 May
8-10 wk
13 Mar
13 Jul
0 wk
10 Mar
3 Jul
0 wk
Petunia
Petunia
26 Jan – 23 Feb
8 May
8-12 wk
20 Apr
3 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Jan – 1 Feb
2 May
6-8 wk
15 Mar
13 Jun
0 wk
25 Apr
3 Jun
6 wk after
Common zinnia
Zinnia elegans
9 – 23 Mar
15 Jun
4-6 wk
20 Apr
13 Jul
5 wk after
Common morning glory
Ipomoea purpurea
28 Mar – 11 Apr
15 Jun
3-5 wk
2 May
6 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
9 – 23 Mar
5 Jun
4-6 wk
20 Apr
3 Jul
5 wk after
25 Apr
23 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
27 Feb – 27 Mar
31 May
8-12 wk
22 May
26 Jul
10 wk after
Bee balm
Monarda didyma
Season too short
19 Dec – 16 Jan
18 Apr
8-12 wk
13 Mar
13 Jun
0 wk
19 Mar
3 Jun
1 wk after
Yarrow
Achillea millefolium
Season too short
16 – 30 Jan
2 Apr
6-8 wk
13 Mar
14 May
0 wk
13 Mar
4 May
0 wk
Safflower
Carthamus tinctorius
Season too short
13 Mar
13 Jun
0 wk
4 Mar
3 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
16 – 30 Jan
22 May
6-8 wk
13 Mar
3 Jul
0 wk
25 Feb
23 Jun
2 wk before
Bishop's flower
Ammi majus
Season too short
30 Jan – 13 Feb
5 Jun
4-6 wk
13 Mar
3 Jul
0 wk
13 Mar
23 Jun
0 wk
Drumsticks
Pycnosorus globosus
7 – 21 Feb
4 Apr
10-12 wk
2 May
13 Jun
7 wk after
Sunflower
Helianthus annuus
23 – 30 Mar
12 Jun
3-4 wk
20 Apr
3 Jul
5 wk after
7 Apr
23 Jun
4 wk after
China aster
Callistephus chinensis
23 Feb – 9 Mar
1 Jun
6-8 wk
20 Apr
13 Jul
5 wk after
25 Apr
3 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Feb
1 Jun
6-8 wk
6 Apr
13 Jul
3 wk after
25 Apr
3 Jul
6 wk after
Hollyhock
Alcea rosea
16 – 30 Jan
6-8 wk
13 Mar
0 wk
26 Mar
2 wk after
Alpine delphinium
Delphinium elatum
Season too short
19 Dec – 16 Jan
18 Apr
8-12 wk
13 Mar
13 Jun
0 wk
19 Mar
3 Jun
1 wk after
African marigold
Tagetes erecta
23 Feb – 9 Mar
1 Jun
6-8 wk
20 Apr
13 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
18 Jan – 1 Feb
22 May
6-8 wk
15 Mar
3 Jul
0 wk
25 Apr
23 Jun
6 wk after
Wood sage
Salvia nemorosa
Season too short
2 – 16 Jan
8 Apr
8-10 wk
13 Mar
3 Jun
0 wk
19 Mar
24 May
1 wk after
Black-eyed susan vine
Thunbergia alata
21 Feb – 21 Mar
25 May
6-10 wk
2 May
6 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
13 Mar
13 Jul
0 wk
14 Mar
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
9 – 23 Feb
8 May
8-10 wk
20 Apr
3 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
16 – 30 Jan
2 May
6-8 wk
13 Mar
13 Jun
0 wk
13 Mar
3 Jun
0 wk