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-3.0°
Slight frost tomorrow morning at 07:00. Frost temperatures between tomorrow 01:00 – 09:00. Bring in or cover sensitive plants
0.5°
Last 24h: Near frost recorded this morning at 07:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 15 May Frost 1 of 4 years · 20 years of data
Frost-free season 150 days 15 May – 12 Oct
Probability that frost is over

75% = 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)
Greenhouse
2 – 16 Apr
5-7 wk
21 May
1 wk after
16 Apr
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
4-6 wk
1 Jun
2 wk after
11 May
1 wk before
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Mar
5-7 wk
21 Apr
4 wk before
7 May
2 wk before
Cucumber
Cucumis sativus
Greenhouse
22 – 29 May
3-4 wk
19 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
Season too short
15 – 22 May
4-5 wk
19 Jun
5 wk after
25 May
1 wk after
Butter bean
Phaseolus lunatus
Season too short
23 – 30 May
3-4 wk
20 Jun
5 wk after
Onion
Allium cepa (Cepa-gruppen)
20 Feb – 20 Mar
8-12 wk
15 May
Vid frost
28 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
1 wk after
Sweetcorn
Zea mays
Greenhouse
15 – 22 May
3-4 wk
12 Jun
4 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
17 – 24 May
3-4 wk
14 Jun
4 wk after
28 May
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Mar
5-7 wk
21 Apr
4 wk before
7 May
2 wk before
Potato
Solanum tuberosum
21 May – 4 Jun
4-6 wk
2 Jul
7 wk after
23 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Mar
5-7 wk
21 Apr
4 wk before
11 May
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
22 – 29 May
3-4 wk
19 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
17 – 24 May
3-4 wk
14 Jun
4 wk after
28 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
4-6 wk
1 Jun
2 wk after
Lettuce
Lactuca sativa
10 – 17 Apr
3-4 wk
8 May
1 wk before
11 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Mar – 10 Apr
4-6 wk
8 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 Apr
2-4 wk
30 Apr
2 wk before
7 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
11 May
1 wk before
Spinach
Spinacia oleracea
2 – 9 Apr
3-4 wk
30 Apr
2 wk before
2 May
3 wk before
Sweet potato
Ipomoea batatas
2 – 16 Jun
4-6 wk
14 Jul
8 wk after
Tomato
Solanum lycopersicum
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Greenhouse
9 – 23 May
2-4 wk
6 Jun
3 wk after
25 May
1 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
4-6 wk
1 Jun
2 wk after
Pea
Pisum sativum
2 – 9 Apr
3-4 wk
30 Apr
2 wk before
11 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
1 – 15 May
4-6 wk
12 Jun
4 wk after
Lemon balm
Melissa officinalis
6 – 20 Mar
8-10 wk
15 May
Vid frost
9 Jun
3 wk after
Dill
Anethum graveolens
11 May
1 wk before
Chives
Allium schoenoprasum
24 Feb – 10 Mar
6-8 wk
21 Apr
4 wk before
11 May
1 wk before
Spearmint
Mentha spicata
5 Feb – 5 Mar
8-12 wk
30 Apr
2 wk before
9 Jun
3 wk after
Coriander
Coriandrum sativum
28 May
1 wk after
Sage
Salvia officinalis
5 – 19 Apr
8-10 wk
14 Jun
4 wk after
Thyme
Thymus vulgaris
23 Mar – 6 Apr
8-10 wk
1 Jun
2 wk after
Oregano
Origanum vulgare
26 Mar – 9 Apr
6-8 wk
21 May
1 wk after
9 Jun
3 wk after
Parsley
Petroselinum crispum
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
11 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
20 Feb – 20 Mar
10-14 wk
29 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
3 – 10 Jun
3-4 wk
1 Jul
7 wk after
Cornflower
Centaurea cyanus
30 Apr
2 wk before
11 May
1 wk before
Statice
Limonium sinuatum
Greenhouse
28 Mar – 11 Apr
8-10 wk
6 Jun
3 wk after
Sweet William
Dianthus barbatus
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
23 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
12 Jun
4 wk after
Dahlia
Dahlia × pinnata
Greenhouse
3 – 17 Apr
6-8 wk
29 May
2 wk after
Dahlia (tubers)
Dahlia × pinnata
2 – 30 May
4-8 wk
27 Jun
6 wk after
9 Jun
3 wk after
Foxglove
Digitalis purpurea
19 Feb – 5 Mar
8-10 wk
30 Apr
2 wk before
28 May
1 wk after
Busy lizzie
Impatiens walleriana
Fleece
8 Apr – 6 May
8-12 wk
1 Jul
7 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
20 May – 3 Jun
4-6 wk
1 Jul
7 wk after
Chinese lantern
Physalis alkekengi
Fleece
20 Mar – 3 Apr
8-10 wk
29 May
2 wk after
Love in a mist
Nigella damascena
11 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
12 Jun
4 wk after
Tall verbena
Verbena bonariensis
Fleece
6 Mar – 3 Apr
8-12 wk
29 May
2 wk after
Cardoon
Cynara cardunculus
Season too short
14 Mar – 11 Apr
8-12 wk
6 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Season too short
24 Apr – 8 May
6-8 wk
19 Jun
5 wk after
Corn poppy
Papaver rhoeas
11 May
1 wk before
Snapdragon
Antirrhinum majus
13 Feb – 13 Mar
8-12 wk
8 May
1 wk before
23 May
1 wk after
Flossflower
Ageratum houstonianum
Season too short
10 – 24 Apr
8-10 wk
19 Jun
5 wk after
Sweet pea
Lathyrus odoratus
5 – 26 Mar
5-8 wk
30 Apr
2 wk before
Stock
Matthiola incana
13 – 27 Mar
6-8 wk
8 May
1 wk before
28 May
1 wk after
Wormwood
Artemisia absinthium
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
28 May
1 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
8 – 22 May
4-6 wk
19 Jun
5 wk after
Pansy
Viola × wittrockiana
10 – 24 Feb
8-10 wk
21 Apr
4 wk before
23 May
1 wk after
Petunia
Petunia
Greenhouse
14 Mar – 11 Apr
8-12 wk
6 Jun
3 wk after
Scabious
Scabiosa atropurpurea
Fleece
3 – 17 Apr
6-8 wk
29 May
2 wk after
5 Jun
3 wk after
Zinnia
Zinnia elegans
Greenhouse
25 Apr – 9 May
4-6 wk
6 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Season too short
15 – 29 May
3-5 wk
19 Jun
5 wk after
Cosmos
Cosmos bipinnatus
Greenhouse
25 Apr – 9 May
4-6 wk
6 Jun
3 wk after
25 May
1 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
8 Apr – 6 May
8-12 wk
1 Jul
7 wk after
Bee balm
Monarda didyma
20 Feb – 20 Mar
8-12 wk
15 May
Vid frost
9 Jun
3 wk after
Yarrow
Achillea millefolium
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
28 May
1 wk after
Safflower
Carthamus tinctorius
30 Apr
2 wk before
11 May
1 wk before
Iceland poppy
Papaver nudicaule
24 Feb – 10 Mar
6-8 wk
21 Apr
4 wk before
7 May
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
4-6 wk
26 May
1 wk after
28 May
1 wk after
Drumsticks
Pycnosorus globosus
Season too short
27 Mar – 10 Apr
10-12 wk
19 Jun
5 wk after
Sunflower
Helianthus annuus
Greenhouse
9 – 16 May
3-4 wk
6 Jun
3 wk after
14 May
China aster
Callistephus chinensis
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
25 May
1 wk after
Annual phlox
Phlox drummondii
25 Apr – 9 May
6-8 wk
20 Jun
5 wk after
25 Jun
5 wk after
Hollyhock
Alcea rosea
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
28 May
1 wk after
Delphinium
Delphinium elatum
9 Mar – 6 Apr
8-12 wk
1 Jun
2 wk after
9 Jun
3 wk after
African marigold
Tagetes erecta
Greenhouse
11 – 25 Apr
6-8 wk
6 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
19 Apr – 3 May
6-8 wk
14 Jun
4 wk after
25 Jun
5 wk after
Woodland sage
Salvia nemorosa
12 – 26 Mar
8-10 wk
21 May
1 wk after
9 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
10 Apr – 8 May
6-10 wk
19 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
11 May
1 wk before
Painted tongue
Salpiglossis sinuata
Greenhouse
28 Mar – 11 Apr
8-10 wk
6 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
5 – 19 Mar
6-8 wk
30 Apr
2 wk before
28 May
1 wk after
Current date Soon Date passed