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Rel. frost
Last spring frost (0°C) 2 Apr Frost 1 of 10 years · 20 years of data
Frost-free season 253 days 2 Apr – 11 Dec
Probability that frost is over

90% = 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
12 – 26 Feb
17 Jun
5-7 wk
2 Apr
22 Jul
0 wk
4 Mar
12 Jul
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
19 Feb – 5 Mar
29 Jun
4-6 wk
2 Apr
27 Jul
0 wk
4 Mar
17 Jul
4 wk before
Chili pepper
Capsicum annuum
Fleece
15 Feb – 15 Mar
27 Apr
8-12 wk
10 May
22 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
12 – 26 Feb
12 Jun
5-7 wk
2 Apr
17 Jul
0 wk
22 Feb
7 Jul
6 wk before
Garden cucumber
Cucumis sativus
24 Apr – 1 May
21 Jun
3-4 wk
22 May
12 Jul
7 wk after
Florence Fennel
Foeniculum vulgare
17 – 24 Apr
9 Jun
4-5 wk
22 May
7 Jul
7 wk after
8 May
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
4 – 11 May
6 Jun
3-4 wk
1 Jun
27 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
8 Jan – 5 Feb
2 Apr
8-12 wk
2 Apr
28 May
0 wk
21 Mar
18 May
2 wk before
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
4 Mar
17 Jun
4 wk before
4 Mar
7 Jun
4 wk before
Maize
Zea mays
12 – 19 Apr
11 Jun
3-4 wk
10 May
2 Jul
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
Season too short
5 – 12 Mar
6 Jul
3-4 wk
2 Apr
27 Jul
0 wk
21 Mar
17 Jul
2 wk before
Carrot
Daucus carota subsp. sativus var. sativus
2 Apr
7 Jul
0 wk
21 Mar
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
12 – 26 Feb
12 Jun
5-7 wk
2 Apr
17 Jul
0 wk
22 Feb
7 Jul
6 wk before
Potato
Solanum tuberosum
Season too short
1 – 15 Feb
9 Jun
4-6 wk
15 Mar
7 Jul
3 wk before
15 Mar
27 Jun
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
Season too short
12 – 26 Feb
22 Jun
5-7 wk
2 Apr
27 Jul
0 wk
4 Mar
17 Jul
4 wk before
Pumpkin
Cucurbita pepo
24 Apr – 1 May
11 Jul
3-4 wk
22 May
1 Aug
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
5 – 12 Mar
6 Jul
3-4 wk
2 Apr
27 Jul
0 wk
21 Mar
17 Jul
2 wk before
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
19 Feb – 5 Mar
24 Jun
4-6 wk
2 Apr
22 Jul
0 wk
Lettuce
Lactuca sativa
Season too short
5 – 12 Mar
11 Jul
3-4 wk
2 Apr
1 Aug
0 wk
4 Mar
22 Jul
4 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
19 Feb – 5 Mar
24 Jun
4-6 wk
2 Apr
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
25 Jan – 8 Feb
3 Jun
2-4 wk
22 Feb
17 Jun
6 wk before
22 Feb
7 Jun
6 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
4 Mar
17 Jun
4 wk before
4 Mar
7 Jun
4 wk before
Spinach
Spinacia oleracea
Season too short
5 – 12 Mar
26 Jul
3-4 wk
2 Apr
16 Aug
0 wk
30 Jan
6 Aug
9 wk before
Sweet potato
Ipomoea batatas
29 Apr – 13 May
4-6 wk
10 Jun
10 wk after
Garden tomato
Solanum lycopersicum
15 – 29 Mar
21 May
6-8 wk
10 May
2 Jul
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 Apr
13 Jul
2-4 wk
10 May
27 Jul
5 wk after
8 May
17 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
19 Feb – 5 Mar
24 Jun
4-6 wk
2 Apr
22 Jul
0 wk
Garden pea
Pisum sativum
Season too short
5 – 12 Mar
26 Jun
3-4 wk
2 Apr
17 Jul
0 wk
4 Mar
7 Jul
4 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
10 – 24 Apr
19 Jun
4-6 wk
22 May
17 Jul
7 wk after
Lemon balm
Melissa officinalis
Season too short
22 Jan – 5 Feb
22 May
8-10 wk
2 Apr
17 Jul
0 wk
1 Apr
7 Jul
0 wk
Dill
Anethum graveolens
26 Mar
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
5 – 19 Feb
5 Jun
6-8 wk
2 Apr
17 Jul
0 wk
4 Mar
7 Jul
4 wk before
Spearmint
Mentha spicata
Season too short
8 Jan – 5 Feb
22 May
8-12 wk
2 Apr
17 Jul
0 wk
1 Apr
7 Jul
0 wk
Coriander
Coriandrum sativum
2 Apr
16 Aug
0 wk
12 Apr
6 Aug
1 wk after
Garden sage
Salvia officinalis
Season too short
22 Jan – 5 Feb
7 May
8-10 wk
2 Apr
2 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
22 Jan – 5 Feb
12 May
8-10 wk
2 Apr
7 Jul
0 wk
Oregano
Origanum vulgare
Season too short
5 – 19 Feb
26 May
6-8 wk
2 Apr
7 Jul
0 wk
1 Apr
27 Jun
0 wk
Parsley
Petroselinum crispum
Season too short
5 – 19 Feb
26 May
6-8 wk
2 Apr
7 Jul
0 wk
4 Mar
27 Jun
4 wk before
Rosemary
Salvia rosmarinus
27 Dec – 24 Jan
8 Apr
10-14 wk
4 Apr
17 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
24 Apr – 1 May
26 Jun
3-4 wk
22 May
17 Jul
7 wk after
Cornflower
Centaurea cyanus
Season too short
2 Apr
17 Jul
0 wk
4 Mar
7 Jul
4 wk before
Statice
Limonium sinuatum
1 – 15 Mar
12 May
8-10 wk
10 May
7 Jul
5 wk after
Sweet William
Dianthus barbatus
5 – 19 Feb
6-8 wk
2 Apr
0 wk
7 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
15 – 29 Mar
26 May
6-8 wk
10 May
7 Jul
5 wk after
10 Jun
27 Jun
10 wk after
Pinnate dahlia
Dahlia × pinnata
8 – 22 Mar
26 May
6-8 wk
3 May
7 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
4 Feb – 4 Mar
9 Jun
4-8 wk
1 Apr
7 Jul
0 wk
1 Apr
27 Jun
0 wk
Foxglove
Digitalis purpurea
22 Jan – 5 Feb
8-10 wk
2 Apr
0 wk
12 Apr
1 wk after
Busy lizzie
Impatiens walleriana
27 Feb – 27 Mar
7 Jul
8-12 wk
22 May
1 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Mar
5 Jun
6-8 wk
10 May
17 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
10 – 24 Apr
20 May
4-6 wk
22 May
17 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Season too short
22 Jan – 5 Feb
22 Apr
8-10 wk
2 Apr
17 Jun
0 wk
Love in a mist
Nigella damascena
2 Apr
2 Jul
0 wk
26 Mar
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
15 – 29 Mar
16 May
6-8 wk
10 May
27 Jun
5 wk after
10 Jun
17 Jun
10 wk after
Purple-top vervain
Verbena bonariensis
Season too short
8 Jan – 5 Feb
22 Apr
8-12 wk
2 Apr
17 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
8 Jan – 5 Feb
23 Mar
8-12 wk
2 Apr
18 May
0 wk
Regal-foxtail
Ptilotus nobilis
27 Feb – 27 Mar
12 May
8-12 wk
22 May
7 Jul
7 wk after
Globe amaranth
Gomphrena globosa
27 Mar – 10 Apr
26 May
6-8 wk
22 May
7 Jul
7 wk after
Corn poppy
Papaver rhoeas
2 Apr
17 Jul
0 wk
26 Mar
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
Season too short
8 Jan – 5 Feb
12 May
8-12 wk
2 Apr
7 Jul
0 wk
15 Mar
27 Jun
3 wk before
Flossflower
Ageratum houstonianum
13 – 27 Mar
22 May
8-10 wk
22 May
17 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
5 – 26 Feb
2 Jun
5-8 wk
2 Apr
7 Jul
0 wk
Stock
Matthiola incana
Season too short
5 – 19 Feb
5 Jun
6-8 wk
2 Apr
17 Jul
0 wk
21 Mar
7 Jul
2 wk before
Wormwood
Artemisia absinthium
Season too short
5 – 19 Feb
6 May
6-8 wk
2 Apr
17 Jun
0 wk
21 Mar
7 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
10 – 24 Apr
4 Jun
4-6 wk
22 May
2 Jul
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
22 Jan – 5 Feb
22 May
8-10 wk
2 Apr
17 Jul
0 wk
15 Mar
7 Jul
3 wk before
Petunia
Petunia
15 Feb – 15 Mar
12 May
8-12 wk
10 May
7 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
Season too short
5 – 19 Feb
6 May
6-8 wk
2 Apr
17 Jun
0 wk
12 Apr
7 Jun
1 wk after
Common zinnia
Zinnia elegans
29 Mar – 12 Apr
19 Jun
4-6 wk
10 May
17 Jul
5 wk after
Common morning glory
Ipomoea purpurea
17 Apr – 1 May
26 Jun
3-5 wk
22 May
17 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
29 Mar – 12 Apr
9 Jun
4-6 wk
10 May
7 Jul
5 wk after
8 May
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
19 Mar – 16 Apr
11 Jun
8-12 wk
11 Jun
6 Aug
10 wk after
Bee balm
Monarda didyma
Season too short
8 Jan – 5 Feb
22 Apr
8-12 wk
2 Apr
17 Jun
0 wk
1 Apr
7 Jun
0 wk
Yarrow
Achillea millefolium
Season too short
5 – 19 Feb
6 Apr
6-8 wk
2 Apr
18 May
0 wk
21 Mar
8 May
2 wk before
Safflower
Carthamus tinctorius
Season too short
2 Apr
17 Jun
0 wk
4 Mar
7 Jun
4 wk before
Iceland poppy
Papaver nudicaule
Season too short
5 – 19 Feb
26 May
6-8 wk
2 Apr
7 Jul
0 wk
22 Feb
27 Jun
6 wk before
Bishop's flower
Ammi majus
Season too short
19 Feb – 5 Mar
9 Jun
4-6 wk
2 Apr
7 Jul
0 wk
21 Mar
27 Jun
2 wk before
Drumsticks
Pycnosorus globosus
27 Feb – 13 Mar
8 Apr
10-12 wk
22 May
17 Jun
7 wk after
Sunflower
Helianthus annuus
12 – 19 Apr
16 Jun
3-4 wk
10 May
7 Jul
5 wk after
23 Apr
27 Jun
3 wk after
China aster
Callistephus chinensis
15 – 29 Mar
5 Jun
6-8 wk
10 May
17 Jul
5 wk after
8 May
7 Jul
5 wk after
Annual phlox
Phlox drummondii
1 – 15 Mar
5 Jun
6-8 wk
26 Apr
17 Jul
3 wk after
8 May
7 Jul
5 wk after
Hollyhock
Alcea rosea
5 – 19 Feb
6-8 wk
2 Apr
0 wk
12 Apr
1 wk after
Alpine delphinium
Delphinium elatum
Season too short
8 Jan – 5 Feb
22 Apr
8-12 wk
2 Apr
17 Jun
0 wk
1 Apr
7 Jun
0 wk
African marigold
Tagetes erecta
15 – 29 Mar
5 Jun
6-8 wk
10 May
17 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Feb
26 May
6-8 wk
4 Apr
7 Jul
0 wk
8 May
27 Jun
5 wk after
Wood sage
Salvia nemorosa
Season too short
22 Jan – 5 Feb
12 Apr
8-10 wk
2 Apr
7 Jun
0 wk
1 Apr
28 May
0 wk
Black-eyed susan vine
Thunbergia alata
13 Mar – 10 Apr
5 Jun
6-10 wk
22 May
17 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
2 Apr
17 Jul
0 wk
26 Mar
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
1 – 15 Mar
12 May
8-10 wk
10 May
7 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
5 – 19 Feb
6 May
6-8 wk
2 Apr
17 Jun
0 wk
21 Mar
7 Jun
2 wk before