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-0.2°
Last 24h: Slight frost recorded this morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 18 May Frost 1 of 10 years · 20 years of data
Frost-free season 148 days 18 May – 13 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)
Greenhouse
4 – 18 Apr
5-7 wk
23 May
1 wk after
6 May
2 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
4-6 wk
4 Jun
3 wk after
14 May
1 wk after
Chili pepper
Capsicum annuum
Season too short
1 – 29 Apr
8-12 wk
24 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Mar
5-7 wk
24 Apr
3 wk before
10 May
Vid frost
Cucumber
Cucumis sativus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
20 – 27 May
4-5 wk
24 Jun
5 wk after
8 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
8 – 15 Jun
3-4 wk
6 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
23 Feb – 23 Mar
8-12 wk
18 May
Vid frost
31 May
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
18 May
Sweetcorn
Zea mays
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
6 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
20 – 27 May
3-4 wk
17 Jun
5 wk after
31 May
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 May
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Mar
5-7 wk
24 Apr
3 wk before
10 May
Vid frost
Potato
Solanum tuberosum
Season too short
2 – 16 Apr
4-6 wk
14 May
1 wk before
14 May
1 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Mar
5-7 wk
24 Apr
3 wk before
14 May
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
27 May – 3 Jun
3-4 wk
24 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
20 – 27 May
3-4 wk
17 Jun
5 wk after
31 May
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
4-6 wk
4 Jun
3 wk after
Lettuce
Lactuca sativa
13 – 20 Apr
3-4 wk
11 May
1 wk before
14 May
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
30 Mar – 13 Apr
4-6 wk
11 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
2 – 16 Apr
2-4 wk
30 Apr
3 wk before
30 Apr
3 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
6 May
2 wk before
Spinach
Spinacia oleracea
5 – 12 Apr
3-4 wk
3 May
2 wk before
5 May
1 wk before
Sweet potato
Ipomoea batatas
5 – 19 Jun
4-6 wk
17 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
15 – 29 May
2-4 wk
12 Jun
4 wk after
8 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
4-6 wk
4 Jun
3 wk after
Pea
Pisum sativum
5 – 12 Apr
3-4 wk
3 May
2 wk before
14 May
1 wk after
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
Season too short
17 – 31 May
4-6 wk
28 Jun
6 wk after
Lemon balm
Melissa officinalis
9 – 23 Mar
8-10 wk
18 May
Vid frost
12 Jun
5 wk after
Dill
Anethum graveolens
14 May
1 wk after
Chives
Allium schoenoprasum
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
14 May
1 wk after
Spearmint
Mentha spicata
8 Feb – 8 Mar
8-12 wk
3 May
2 wk before
12 Jun
5 wk after
Coriander
Coriandrum sativum
31 May
3 wk after
Sage
Salvia officinalis
Fleece
28 Mar – 11 Apr
8-10 wk
6 Jun
3 wk after
Thyme
Thymus vulgaris
26 Mar – 9 Apr
8-10 wk
4 Jun
3 wk after
Oregano
Origanum vulgare
29 Mar – 12 Apr
6-8 wk
24 May
1 wk after
12 Jun
5 wk after
Parsley
Petroselinum crispum
8 – 22 Mar
6-8 wk
3 May
2 wk before
14 May
1 wk after
Rosemary
Salvia rosmarinus
Greenhouse
14 Feb – 14 Mar
10-14 wk
23 May
1 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
5 – 12 Jun
3-4 wk
3 Jul
7 wk after
Cornflower
Centaurea cyanus
3 May
2 wk before
14 May
1 wk after
Statice
Limonium sinuatum
Greenhouse
3 – 17 Apr
8-10 wk
12 Jun
4 wk after
Sweet William
Dianthus barbatus
8 – 22 Mar
6-8 wk
3 May
2 wk before
26 May
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
28 Jun
6 wk after
Dahlia
Dahlia × pinnata
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
Dahlia (tubers)
Dahlia × pinnata
Season too short
2 – 30 Apr
4-8 wk
28 May
1 wk after
28 May
1 wk after
Foxglove
Digitalis purpurea
22 Feb – 8 Mar
8-10 wk
3 May
2 wk before
31 May
3 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
1 – 29 Apr
8-12 wk
24 Jun
5 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 May – 5 Jun
4-6 wk
3 Jul
7 wk after
Chinese lantern
Physalis alkekengi
Greenhouse
14 – 28 Mar
8-10 wk
23 May
1 wk after
Love in a mist
Nigella damascena
14 May
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
28 Jun
6 wk after
Tall verbena
Verbena bonariensis
Greenhouse
28 Feb – 28 Mar
8-12 wk
23 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
20 Mar – 17 Apr
8-12 wk
12 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
1 – 29 Apr
8-12 wk
24 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
29 Apr – 13 May
6-8 wk
24 Jun
5 wk after
Corn poppy
Papaver rhoeas
14 May
1 wk after
Snapdragon
Antirrhinum majus
16 Feb – 16 Mar
8-12 wk
11 May
1 wk before
26 May
2 wk after
Flossflower
Ageratum houstonianum
Season too short
15 – 29 Apr
8-10 wk
24 Jun
5 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Mar
5-8 wk
3 May
2 wk before
Stock
Matthiola incana
16 – 30 Mar
6-8 wk
11 May
1 wk before
31 May
3 wk after
Wormwood
Artemisia absinthium
8 – 22 Mar
6-8 wk
3 May
2 wk before
31 May
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
13 – 27 May
4-6 wk
24 Jun
5 wk after
Pansy
Viola × wittrockiana
13 – 27 Feb
8-10 wk
24 Apr
3 wk before
26 May
2 wk after
Petunia
Petunia
Greenhouse
20 Mar – 17 Apr
8-12 wk
12 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Greenhouse
28 Mar – 11 Apr
6-8 wk
23 May
1 wk after
8 Jun
3 wk after
Zinnia
Zinnia elegans
Greenhouse
1 – 15 May
4-6 wk
12 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Season too short
20 May – 3 Jun
3-5 wk
24 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
1 – 15 May
4-6 wk
12 Jun
4 wk after
8 Jun
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
10 Apr – 8 May
8-12 wk
3 Jul
7 wk after
Bee balm
Monarda didyma
23 Feb – 23 Mar
8-12 wk
18 May
Vid frost
12 Jun
5 wk after
Yarrow
Achillea millefolium
8 – 22 Mar
6-8 wk
3 May
2 wk before
31 May
3 wk after
Safflower
Carthamus tinctorius
3 May
2 wk before
14 May
1 wk after
Iceland poppy
Papaver nudicaule
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
10 May
Vid frost
Bishop's flower
Ammi majus
17 Apr – 1 May
4-6 wk
29 May
1 wk after
31 May
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
1 – 15 Apr
10-12 wk
24 Jun
5 wk after
Sunflower
Helianthus annuus
Greenhouse
15 – 22 May
3-4 wk
12 Jun
4 wk after
28 May
1 wk after
China aster
Callistephus chinensis
Season too short
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
8 Jun
3 wk after
Annual phlox
Phlox drummondii
Fleece
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
22 Jun
5 wk after
Hollyhock
Alcea rosea
8 – 22 Mar
6-8 wk
3 May
2 wk before
31 May
3 wk after
Delphinium
Delphinium elatum
12 Mar – 9 Apr
8-12 wk
4 Jun
3 wk after
12 Jun
5 wk after
African marigold
Tagetes erecta
Greenhouse
17 Apr – 1 May
6-8 wk
12 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
Fleece
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
22 Jun
5 wk after
Woodland sage
Salvia nemorosa
15 – 29 Mar
8-10 wk
24 May
1 wk after
12 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
15 Apr – 13 May
6-10 wk
24 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
14 May
1 wk after
Painted tongue
Salpiglossis sinuata
Greenhouse
3 – 17 Apr
8-10 wk
12 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Mar
6-8 wk
3 May
2 wk before
31 May
3 wk after
Current date Soon Date passed