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Rel. frost
Last spring frost (0°C) 14 May Frost 1 of 10 years · 20 years of data
Frost-free season 170 days 14 May – 31 Oct
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Fleece
9 – 23 Apr
5-7 wk
28 May
2 wk after
26 Apr
3 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
16 – 30 Apr
4-6 wk
28 May
2 wk after
7 May
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
26 Mar – 23 Apr
8-12 wk
18 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
1 – 15 Mar
5-7 wk
19 Apr
4 wk before
2 May
2 wk before
Cucumber
Cucumis sativus
Fleece
2 – 9 Jun
3-4 wk
30 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
14 – 21 May
4-5 wk
18 Jun
5 wk after
24 May
1 wk after
Butter bean
Phaseolus lunatus
Greenhouse
22 – 29 May
3-4 wk
19 Jun
5 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Feb – 19 Mar
8-12 wk
14 May
Vid frost
24 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
24 May
1 wk after
24 May
1 wk after
Sweetcorn
Zea mays
Fleece
1 – 8 Jun
3-4 wk
29 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
3-4 wk
12 Jun
4 wk after
24 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
1 – 15 Mar
5-7 wk
19 Apr
4 wk before
2 May
2 wk before
Potato
Solanum tuberosum
7 – 21 Apr
4-6 wk
19 May
1 wk after
19 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Mar
5-7 wk
19 Apr
4 wk before
7 May
1 wk before
Pumpkin
Cucurbita pepo
Fleece
2 – 9 Jun
3-4 wk
30 Jun
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 May
3-4 wk
12 Jun
4 wk after
24 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
16 – 30 Apr
4-6 wk
28 May
2 wk after
Lettuce
Lactuca sativa
9 – 16 Apr
3-4 wk
7 May
1 wk before
7 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
26 Mar – 9 Apr
4-6 wk
7 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Apr
2-4 wk
2 May
2 wk before
2 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
1 wk before
7 May
1 wk before
Spinach
Spinacia oleracea
1 – 8 Apr
3-4 wk
29 Apr
2 wk before
26 Apr
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
10 wk after
Tomato
Solanum lycopersicum
Fleece
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
21 May – 4 Jun
2-4 wk
18 Jun
5 wk after
4 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
16 – 30 Apr
4-6 wk
28 May
2 wk after
Pea
Pisum sativum
1 – 8 Apr
3-4 wk
29 Apr
2 wk before
7 May
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
18 May – 1 Jun
4-6 wk
29 Jun
7 wk after
Lemon balm
Melissa officinalis
5 – 19 Mar
8-10 wk
14 May
Vid frost
4 Jun
3 wk after
Dill
Anethum graveolens
7 May
1 wk before
Chives
Allium schoenoprasum
22 Feb – 8 Mar
6-8 wk
19 Apr
4 wk before
7 May
1 wk before
Spearmint
Mentha spicata
4 Feb – 4 Mar
8-12 wk
29 Apr
2 wk before
4 Jun
3 wk after
Coriander
Coriandrum sativum
24 May
1 wk after
Sage
Salvia officinalis
3 – 17 Apr
8-10 wk
12 Jun
4 wk after
Thyme
Thymus vulgaris
19 Mar – 2 Apr
8-10 wk
28 May
2 wk after
Oregano
Origanum vulgare
25 Mar – 8 Apr
6-8 wk
20 May
1 wk after
4 Jun
3 wk after
Parsley
Petroselinum crispum
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
7 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
19 Feb – 19 Mar
10-14 wk
28 May
2 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
2 – 9 Jun
3-4 wk
30 Jun
7 wk after
Cornflower
Centaurea cyanus
29 Apr
2 wk before
7 May
1 wk before
Statice
Limonium sinuatum
Fleece
9 – 23 Apr
8-10 wk
18 Jun
5 wk after
Sweet William
Dianthus barbatus
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
19 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
29 Jun
7 wk after
Dahlia
Dahlia × pinnata
Fleece
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
Dahlia (tubers)
Dahlia × pinnata
9 Apr – 7 May
4-8 wk
4 Jun
3 wk after
4 Jun
3 wk after
Foxglove
Digitalis purpurea
18 Feb – 4 Mar
8-10 wk
29 Apr
2 wk before
24 May
1 wk after
Busy lizzie
Impatiens walleriana
15 Apr – 13 May
8-12 wk
8 Jul
8 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
19 May – 2 Jun
4-6 wk
30 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
19 Mar – 2 Apr
8-10 wk
28 May
2 wk after
Love in a mist
Nigella damascena
7 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
10 – 24 Apr
6-8 wk
5 Jun
3 wk after
11 Jun
4 wk after
Tall verbena
Verbena bonariensis
Fleece
5 Mar – 2 Apr
8-12 wk
28 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
13 Mar – 10 Apr
8-12 wk
5 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
26 Mar – 23 Apr
8-12 wk
18 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
Corn poppy
Papaver rhoeas
7 May
1 wk before
Snapdragon
Antirrhinum majus
12 Feb – 12 Mar
8-12 wk
7 May
1 wk before
19 May
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
9 – 23 Apr
8-10 wk
18 Jun
5 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Mar
5-8 wk
29 Apr
2 wk before
Stock
Matthiola incana
12 – 26 Mar
6-8 wk
7 May
1 wk before
24 May
1 wk after
Wormwood
Artemisia absinthium
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
24 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
7 – 21 May
4-6 wk
18 Jun
5 wk after
Pansy
Viola × wittrockiana
8 – 22 Feb
8-10 wk
19 Apr
4 wk before
19 May
1 wk after
Petunia
Petunia
Fleece
26 Mar – 23 Apr
8-12 wk
18 Jun
5 wk after
Scabious
Scabiosa atropurpurea
Fleece
2 – 16 Apr
6-8 wk
28 May
2 wk after
4 Jun
3 wk after
Zinnia
Zinnia elegans
Fleece
7 – 21 May
4-6 wk
18 Jun
5 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
14 – 28 May
3-5 wk
18 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Fleece
7 – 21 May
4-6 wk
18 Jun
5 wk after
4 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
7 Apr – 5 May
8-12 wk
30 Jun
7 wk after
Bee balm
Monarda didyma
19 Feb – 19 Mar
8-12 wk
14 May
Vid frost
4 Jun
3 wk after
Yarrow
Achillea millefolium
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
24 May
1 wk after
Safflower
Carthamus tinctorius
29 Apr
2 wk before
7 May
1 wk before
Iceland poppy
Papaver nudicaule
22 Feb – 8 Mar
6-8 wk
19 Apr
4 wk before
2 May
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
4-6 wk
24 May
1 wk after
24 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
26 Mar – 9 Apr
10-12 wk
18 Jun
5 wk after
Sunflower
Helianthus annuus
Fleece
21 – 28 May
3-4 wk
18 Jun
5 wk after
24 May
1 wk after
China aster
Callistephus chinensis
Greenhouse
10 – 24 Apr
6-8 wk
5 Jun
3 wk after
24 May
1 wk after
Annual phlox
Phlox drummondii
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
19 Jun
5 wk after
Hollyhock
Alcea rosea
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
24 May
1 wk after
Delphinium
Delphinium elatum
5 Mar – 2 Apr
8-12 wk
28 May
2 wk after
4 Jun
3 wk after
African marigold
Tagetes erecta
Fleece
23 Apr – 7 May
6-8 wk
18 Jun
5 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
19 Jun
5 wk after
Woodland sage
Salvia nemorosa
11 – 25 Mar
8-10 wk
20 May
1 wk after
4 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
9 Apr – 7 May
6-10 wk
18 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
7 May
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
9 – 23 Apr
8-10 wk
18 Jun
5 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Mar
6-8 wk
29 Apr
2 wk before
24 May
1 wk after
Current date Soon Date passed