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-2.1°
Slight frost tomorrow morning at 07:00. Frost temperatures between tomorrow 01:00 – 08:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 18 Apr Frost 9 of 10 years · 20 years of data
Frost-free season 165 days 18 Apr – 30 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
6 – 20 Mar
5-7 wk
24 Apr
1 wk after
20 Mar
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Mar – 7 Apr
4-6 wk
5 May
2 wk after
14 Apr
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
28 Feb – 28 Mar
8-12 wk
23 May
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
10 Apr
2 wk before
Cucumber
Cucumis sativus
Greenhouse
25 Apr – 2 May
3-4 wk
23 May
5 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
18 – 25 Apr
4-5 wk
23 May
5 wk after
28 Apr
1 wk after
Butter bean
Phaseolus lunatus
Greenhouse
26 Apr – 3 May
3-4 wk
24 May
5 wk after
Onion
Allium cepa (Cepa-gruppen)
24 Jan – 21 Feb
8-12 wk
18 Apr
Vid frost
1 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
1 May
1 wk after
Sweetcorn
Zea mays
Fleece
6 – 13 May
3-4 wk
3 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
20 – 27 Apr
3-4 wk
18 May
4 wk after
1 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
10 Apr
2 wk before
Potato
Solanum tuberosum
24 Apr – 8 May
4-6 wk
5 Jun
7 wk after
26 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Feb
5-7 wk
25 Mar
4 wk before
14 Apr
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
25 Apr – 2 May
3-4 wk
23 May
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
20 – 27 Apr
3-4 wk
18 May
4 wk after
1 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Mar – 7 Apr
4-6 wk
5 May
2 wk after
Lettuce
Lactuca sativa
14 – 21 Mar
3-4 wk
11 Apr
1 wk before
14 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Feb – 14 Mar
4-6 wk
11 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
6 – 20 Mar
2-4 wk
3 Apr
2 wk before
10 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
14 Apr
1 wk before
Spinach
Spinacia oleracea
6 – 13 Mar
3-4 wk
3 Apr
2 wk before
5 Apr
3 wk before
Sweet potato
Ipomoea batatas
6 – 20 May
4-6 wk
17 Jun
8 wk after
Tomato
Solanum lycopersicum
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
25 Apr – 9 May
2-4 wk
23 May
5 wk after
9 May
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Mar – 7 Apr
4-6 wk
5 May
2 wk after
Pea
Pisum sativum
6 – 13 Mar
3-4 wk
3 Apr
2 wk before
14 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
Fleece
22 Apr – 6 May
4-6 wk
3 Jun
7 wk after
Lemon balm
Melissa officinalis
7 – 21 Feb
8-10 wk
18 Apr
Vid frost
13 May
3 wk after
Dill
Anethum graveolens
14 Apr
1 wk before
Chives
Allium schoenoprasum
28 Jan – 11 Feb
6-8 wk
25 Mar
4 wk before
14 Apr
1 wk before
Spearmint
Mentha spicata
9 Jan – 6 Feb
8-12 wk
3 Apr
2 wk before
13 May
3 wk after
Coriander
Coriandrum sativum
1 May
1 wk after
Sage
Salvia officinalis
9 – 23 Mar
8-10 wk
18 May
4 wk after
Thyme
Thymus vulgaris
24 Feb – 10 Mar
8-10 wk
5 May
2 wk after
Oregano
Origanum vulgare
27 Feb – 13 Mar
6-8 wk
24 Apr
1 wk after
13 May
3 wk after
Parsley
Petroselinum crispum
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
14 Apr
1 wk before
Rosemary
Salvia rosmarinus
Fleece
24 Jan – 21 Feb
10-14 wk
2 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
7 – 14 May
3-4 wk
4 Jun
7 wk after
Cornflower
Centaurea cyanus
3 Apr
2 wk before
14 Apr
1 wk before
Statice
Limonium sinuatum
Fleece
14 – 28 Mar
8-10 wk
23 May
5 wk after
Sweet William
Dianthus barbatus
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
26 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
3 Jun
7 wk after
Dahlia
Dahlia × pinnata
Fleece
22 Mar – 5 Apr
6-8 wk
17 May
4 wk after
Dahlia (tubers)
Dahlia × pinnata
5 Apr – 3 May
4-8 wk
31 May
6 wk after
13 May
3 wk after
Foxglove
Digitalis purpurea
23 Jan – 6 Feb
8-10 wk
3 Apr
2 wk before
1 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
12 Mar – 9 Apr
8-12 wk
4 Jun
7 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
Hyacinth bean
Dolichos lablab
Season too short
23 Apr – 7 May
4-6 wk
4 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
21 Feb – 7 Mar
8-10 wk
2 May
2 wk after
Love in a mist
Nigella damascena
14 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
3 Jun
7 wk after
Tall verbena
Verbena bonariensis
Fleece
7 Feb – 7 Mar
8-12 wk
2 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
15 Feb – 15 Mar
8-12 wk
10 May
3 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
28 Feb – 28 Mar
8-12 wk
23 May
5 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
Corn poppy
Papaver rhoeas
14 Apr
1 wk before
Snapdragon
Antirrhinum majus
17 Jan – 14 Feb
8-12 wk
11 Apr
1 wk before
26 Apr
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
14 – 28 Mar
8-10 wk
23 May
5 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Feb
5-8 wk
3 Apr
2 wk before
Stock
Matthiola incana
14 – 28 Feb
6-8 wk
11 Apr
1 wk before
1 May
1 wk after
Wormwood
Artemisia absinthium
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
1 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
11 – 25 Apr
4-6 wk
23 May
5 wk after
Pansy
Viola × wittrockiana
14 – 28 Jan
8-10 wk
25 Mar
4 wk before
26 Apr
1 wk after
Petunia
Petunia
Fleece
28 Feb – 28 Mar
8-12 wk
23 May
5 wk after
Scabious
Scabiosa atropurpurea
Fleece
7 – 21 Mar
6-8 wk
2 May
2 wk after
9 May
3 wk after
Zinnia
Zinnia elegans
Fleece
11 – 25 Apr
4-6 wk
23 May
5 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
18 Apr – 2 May
3-5 wk
23 May
5 wk after
Cosmos
Cosmos bipinnatus
Fleece
11 – 25 Apr
4-6 wk
23 May
5 wk after
9 May
3 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
7 wk after
Bee balm
Monarda didyma
24 Jan – 21 Feb
8-12 wk
18 Apr
Vid frost
13 May
3 wk after
Yarrow
Achillea millefolium
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
1 May
1 wk after
Safflower
Carthamus tinctorius
3 Apr
2 wk before
14 Apr
1 wk before
Iceland poppy
Papaver nudicaule
28 Jan – 11 Feb
6-8 wk
25 Mar
4 wk before
10 Apr
2 wk before
Bishop's flower
Ammi majus
18 Mar – 1 Apr
4-6 wk
29 Apr
1 wk after
1 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
28 Feb – 14 Mar
10-12 wk
23 May
5 wk after
Sunflower
Helianthus annuus
Fleece
25 Apr – 2 May
3-4 wk
23 May
5 wk after
28 Apr
1 wk after
China aster
Callistephus chinensis
Greenhouse
15 – 29 Mar
6-8 wk
10 May
3 wk after
28 Apr
1 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
6-8 wk
24 May
5 wk after
29 May
5 wk after
Hollyhock
Alcea rosea
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
1 May
1 wk after
Delphinium
Delphinium elatum
10 Feb – 10 Mar
8-12 wk
5 May
2 wk after
13 May
3 wk after
African marigold
Tagetes erecta
Fleece
28 Mar – 11 Apr
6-8 wk
23 May
5 wk after
Black-eyed Susan
Rudbeckia hirta
23 Mar – 6 Apr
6-8 wk
18 May
4 wk after
29 May
5 wk after
Woodland sage
Salvia nemorosa
13 – 27 Feb
8-10 wk
24 Apr
1 wk after
13 May
3 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
14 Mar – 11 Apr
6-10 wk
23 May
5 wk after
California goldenpoppy
Eschscholzia californica
14 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
14 – 28 Mar
8-10 wk
23 May
5 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Feb
6-8 wk
3 Apr
2 wk before
1 May
1 wk after
Current date Soon Date passed