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-2.2°
Slight frost tonight at 04:00. Frost temperatures between tomorrow 00:00 – 06:00. Bring in or cover sensitive plants
-2.4°
Last 24h: Slight frost recorded tonight at 05:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 24 May Frost 1 of 10 years · 20 years of data
Frost-free season 149 days 24 May – 20 Oct
Probability that frost is over

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

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Vegetables

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