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-1.4°
Last 24h: Slight frost recorded this morning at 06:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 25 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 149 days 25 Apr – 21 Sep
Probability that frost is over

10% = 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
13 – 27 Mar
5-7 wk
1 May
1 wk after
27 Mar
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
31 Mar – 14 Apr
4-6 wk
12 May
2 wk after
21 Apr
1 wk before
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Feb
5-7 wk
1 Apr
4 wk before
17 Apr
2 wk before
Cucumber
Cucumis sativus
Greenhouse
2 – 9 May
3-4 wk
30 May
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
25 Apr – 2 May
4-5 wk
30 May
5 wk after
5 May
1 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 May
3-4 wk
31 May
5 wk after
Onion
Allium cepa (Cepa-gruppen)
31 Jan – 28 Feb
8-12 wk
25 Apr
Vid frost
8 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 May
1 wk after
Sweetcorn
Zea mays
Greenhouse
25 Apr – 2 May
3-4 wk
23 May
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
27 Apr – 4 May
3-4 wk
25 May
4 wk after
8 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Feb
5-7 wk
1 Apr
4 wk before
17 Apr
2 wk before
Potato
Solanum tuberosum
1 – 15 May
4-6 wk
12 Jun
7 wk after
3 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Feb
5-7 wk
1 Apr
4 wk before
21 Apr
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
2 – 9 May
3-4 wk
30 May
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
27 Apr – 4 May
3-4 wk
25 May
4 wk after
8 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
31 Mar – 14 Apr
4-6 wk
12 May
2 wk after
Lettuce
Lactuca sativa
21 – 28 Mar
3-4 wk
18 Apr
1 wk before
21 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Mar
4-6 wk
18 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 Mar
2-4 wk
10 Apr
2 wk before
17 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 Apr
1 wk before
Spinach
Spinacia oleracea
13 – 20 Mar
3-4 wk
10 Apr
2 wk before
12 Apr
3 wk before
Sweet potato
Ipomoea batatas
13 – 27 May
4-6 wk
24 Jun
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
19 Apr – 3 May
2-4 wk
17 May
3 wk after
5 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
31 Mar – 14 Apr
4-6 wk
12 May
2 wk after
Pea
Pisum sativum
13 – 20 Mar
3-4 wk
10 Apr
2 wk before
21 Apr
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
Greenhouse
11 – 25 Apr
4-6 wk
23 May
4 wk after
Lemon balm
Melissa officinalis
14 – 28 Feb
8-10 wk
25 Apr
Vid frost
20 May
3 wk after
Dill
Anethum graveolens
21 Apr
1 wk before
Chives
Allium schoenoprasum
4 – 18 Feb
6-8 wk
1 Apr
4 wk before
21 Apr
1 wk before
Spearmint
Mentha spicata
16 Jan – 13 Feb
8-12 wk
10 Apr
2 wk before
20 May
3 wk after
Coriander
Coriandrum sativum
8 May
1 wk after
Sage
Salvia officinalis
16 – 30 Mar
8-10 wk
25 May
4 wk after
Thyme
Thymus vulgaris
3 – 17 Mar
8-10 wk
12 May
2 wk after
Oregano
Origanum vulgare
6 – 20 Mar
6-8 wk
1 May
1 wk after
20 May
3 wk after
Parsley
Petroselinum crispum
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
21 Apr
1 wk before
Rosemary
Salvia rosmarinus
Fleece
31 Jan – 28 Feb
10-14 wk
9 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
14 – 21 May
3-4 wk
11 Jun
7 wk after
Cornflower
Centaurea cyanus
10 Apr
2 wk before
21 Apr
1 wk before
Statice
Limonium sinuatum
Greenhouse
8 – 22 Mar
8-10 wk
17 May
3 wk after
Sweet William
Dianthus barbatus
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
3 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
23 May
4 wk after
Dahlia
Dahlia × pinnata
Fleece
29 Mar – 12 Apr
6-8 wk
24 May
4 wk after
Dahlia (tubers)
Dahlia × pinnata
12 Apr – 10 May
4-8 wk
7 Jun
6 wk after
20 May
3 wk after
Foxglove
Digitalis purpurea
30 Jan – 13 Feb
8-10 wk
10 Apr
2 wk before
8 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
19 Mar – 16 Apr
8-12 wk
11 Jun
7 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
28 Feb – 14 Mar
8-10 wk
9 May
2 wk after
Love in a mist
Nigella damascena
21 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
23 May
4 wk after
Tall verbena
Verbena bonariensis
Fleece
14 Feb – 14 Mar
8-12 wk
9 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
22 Feb – 22 Mar
8-12 wk
17 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
4 – 18 Apr
6-8 wk
30 May
5 wk after
Corn poppy
Papaver rhoeas
21 Apr
1 wk before
Snapdragon
Antirrhinum majus
24 Jan – 21 Feb
8-12 wk
18 Apr
1 wk before
3 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
21 Mar – 4 Apr
8-10 wk
30 May
5 wk after
Sweet pea
Lathyrus odoratus
13 Feb – 6 Mar
5-8 wk
10 Apr
2 wk before
Stock
Matthiola incana
21 Feb – 7 Mar
6-8 wk
18 Apr
1 wk before
8 May
1 wk after
Wormwood
Artemisia absinthium
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
8 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
18 Apr – 2 May
4-6 wk
30 May
5 wk after
Pansy
Viola × wittrockiana
21 Jan – 4 Feb
8-10 wk
1 Apr
4 wk before
3 May
1 wk after
Petunia
Petunia
Greenhouse
22 Feb – 22 Mar
8-12 wk
17 May
3 wk after
Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Mar
6-8 wk
9 May
2 wk after
16 May
3 wk after
Zinnia
Zinnia elegans
Greenhouse
5 – 19 Apr
4-6 wk
17 May
3 wk after
Common morning glory
Ipomoea purpurea
Season too short
25 Apr – 9 May
3-5 wk
30 May
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
5 – 19 Apr
4-6 wk
17 May
3 wk after
5 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
19 Mar – 16 Apr
8-12 wk
11 Jun
7 wk after
Bee balm
Monarda didyma
31 Jan – 28 Feb
8-12 wk
25 Apr
Vid frost
20 May
3 wk after
Yarrow
Achillea millefolium
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
8 May
1 wk after
Safflower
Carthamus tinctorius
10 Apr
2 wk before
21 Apr
1 wk before
Iceland poppy
Papaver nudicaule
4 – 18 Feb
6-8 wk
1 Apr
4 wk before
17 Apr
2 wk before
Bishop's flower
Ammi majus
25 Mar – 8 Apr
4-6 wk
6 May
1 wk after
8 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
7 – 21 Mar
10-12 wk
30 May
5 wk after
Sunflower
Helianthus annuus
Greenhouse
19 – 26 Apr
3-4 wk
17 May
3 wk after
24 Apr
China aster
Callistephus chinensis
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
5 May
1 wk after
Annual phlox
Phlox drummondii
Fleece
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
16 May
3 wk after
Hollyhock
Alcea rosea
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
8 May
1 wk after
Delphinium
Delphinium elatum
17 Feb – 17 Mar
8-12 wk
12 May
2 wk after
20 May
3 wk after
African marigold
Tagetes erecta
Greenhouse
22 Mar – 5 Apr
6-8 wk
17 May
3 wk after
Black-eyed Susan
Rudbeckia hirta
30 Mar – 13 Apr
6-8 wk
25 May
4 wk after
5 Jun
5 wk after
Woodland sage
Salvia nemorosa
20 Feb – 6 Mar
8-10 wk
1 May
1 wk after
20 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
21 Mar – 18 Apr
6-10 wk
30 May
5 wk after
California goldenpoppy
Eschscholzia californica
21 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
8 – 22 Mar
8-10 wk
17 May
3 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Feb
6-8 wk
10 Apr
2 wk before
8 May
1 wk after
Current date Soon Date passed