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Rel. frost
Last spring frost (0°C) 7 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 223 days 7 Apr – 16 Nov
Probability that frost is over

25% = 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)
Season too short
17 Feb – 3 Mar
11 Jun
5-7 wk
7 Apr
16 Jul
0 wk
29 Mar
6 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
24 Feb – 10 Mar
23 Jun
4-6 wk
7 Apr
21 Jul
0 wk
29 Mar
11 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
6 Feb – 6 Mar
14 Apr
8-12 wk
1 May
9 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
17 Feb – 3 Mar
6 Jun
5-7 wk
7 Apr
11 Jul
0 wk
22 Mar
1 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
17 – 24 Apr
8 Jun
3-4 wk
15 May
29 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 Apr
3 Jun
4-5 wk
27 May
1 Jul
7 wk after
20 May
21 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 May
27 May
3-4 wk
6 Jun
17 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
13 Jan – 10 Feb
27 Mar
8-12 wk
7 Apr
22 May
0 wk
7 Apr
12 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
29 Mar
11 Jun
1 wk before
29 Mar
1 Jun
1 wk before
Maize
Zea mays
Fleece
3 – 10 Apr
29 May
3-4 wk
1 May
19 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 Mar
30 Jun
3-4 wk
9 Apr
21 Jul
0 wk
20 Apr
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Apr
1 Jul
0 wk
7 Apr
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
17 Feb – 3 Mar
6 Jun
5-7 wk
7 Apr
11 Jul
0 wk
22 Mar
1 Jul
2 wk before
Potato
Solanum tuberosum
Season too short
21 Feb – 7 Mar
3 Jun
4-6 wk
4 Apr
1 Jul
0 wk
4 Apr
21 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Feb – 3 Mar
16 Jun
5-7 wk
7 Apr
21 Jul
0 wk
8 Apr
11 Jul
0 wk
Pumpkin
Cucurbita pepo
29 Apr – 6 May
13 Jun
3-4 wk
27 May
4 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
10 – 17 Mar
30 Jun
3-4 wk
7 Apr
21 Jul
0 wk
7 Apr
11 Jul
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
18 Jun
4-6 wk
7 Apr
16 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Mar
5 Jul
3-4 wk
7 Apr
26 Jul
0 wk
8 Apr
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
18 Jun
4-6 wk
7 Apr
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
22 Feb – 8 Mar
28 May
2-4 wk
22 Mar
11 Jun
2 wk before
22 Mar
1 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
29 Mar
11 Jun
1 wk before
29 Mar
1 Jun
1 wk before
Spinach
Spinacia oleracea
Season too short
10 – 17 Mar
20 Jul
3-4 wk
7 Apr
10 Aug
0 wk
6 Feb
31 Jul
9 wk before
Sweet potato
Ipomoea batatas
2 – 16 May
4-6 wk
13 Jun
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
6 – 20 Mar
8 May
6-8 wk
1 May
19 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
17 Apr – 1 May
15 Jun
2-4 wk
15 May
29 Jun
5 wk after
20 May
19 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
24 Feb – 10 Mar
18 Jun
4-6 wk
7 Apr
16 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Mar
20 Jun
3-4 wk
7 Apr
11 Jul
0 wk
8 Apr
1 Jul
0 wk

Herbs

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