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-4.9°
Moderate frost tomorrow morning at 07:00. Frost temperatures between 22:00 – tomorrow 10:00. Bring in or cover sensitive plants
-1.7°
Last 24h: Slight frost recorded this morning at 08:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 16 May Frost 1 of 10 years · 20 years of data
Frost-free season 158 days 16 May – 21 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
2 – 16 Apr
5-7 wk
21 May
1 wk after
4 May
2 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
21 Apr – 5 May
4-6 wk
2 Jun
3 wk after
12 May
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
30 Mar – 27 Apr
8-12 wk
22 Jun
5 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Mar
5-7 wk
22 Apr
3 wk before
8 May
Vid frost
Cucumber
Cucumis sativus
Fleece
3 – 10 Jun
3-4 wk
1 Jul
7 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
18 – 25 May
4-5 wk
22 Jun
5 wk after
6 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
21 Feb – 21 Mar
8-12 wk
16 May
Vid frost
29 May
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
29 May
3 wk after
Sweetcorn
Zea mays
Greenhouse
29 May – 5 Jun
3-4 wk
26 Jun
6 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
3-4 wk
15 Jun
5 wk after
29 May
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 May
Vid frost
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Mar
5-7 wk
22 Apr
3 wk before
8 May
Vid frost
Potato
Solanum tuberosum
22 May – 5 Jun
4-6 wk
3 Jul
7 wk after
24 May
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Mar
5-7 wk
22 Apr
3 wk before
12 May
1 wk after
Pumpkin
Cucurbita pepo
13 – 20 Jun
3-4 wk
11 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
18 – 25 May
3-4 wk
15 Jun
5 wk after
29 May
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
21 Apr – 5 May
4-6 wk
2 Jun
3 wk after
Lettuce
Lactuca sativa
11 – 18 Apr
3-4 wk
9 May
1 wk before
12 May
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 Apr
2-4 wk
1 May
2 wk before
8 May
Vid frost
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
12 May
1 wk after
Spinach
Spinacia oleracea
3 – 10 Apr
3-4 wk
1 May
2 wk before
3 May
1 wk before
Sweet potato
Ipomoea batatas
3 – 17 Jun
4-6 wk
15 Jul
8 wk after
Tomato
Solanum lycopersicum
8 – 22 May
6-8 wk
3 Jul
7 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
5 – 19 Jun
2-4 wk
3 Jul
7 wk after
26 Jun
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
21 Apr – 5 May
4-6 wk
2 Jun
3 wk after
Pea
Pisum sativum
3 – 10 Apr
3-4 wk
1 May
2 wk before
12 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
Greenhouse
15 – 29 May
4-6 wk
26 Jun
6 wk after
Lemon balm
Melissa officinalis
7 – 21 Mar
8-10 wk
16 May
Vid frost
10 Jun
5 wk after
Dill
Anethum graveolens
12 May
1 wk after
Chives
Allium schoenoprasum
25 Feb – 11 Mar
6-8 wk
22 Apr
3 wk before
12 May
1 wk after
Spearmint
Mentha spicata
6 Feb – 6 Mar
8-12 wk
1 May
2 wk before
10 Jun
5 wk after
Coriander
Coriandrum sativum
29 May
3 wk after
Sage
Salvia officinalis
6 – 20 Apr
8-10 wk
15 Jun
5 wk after
Thyme
Thymus vulgaris
24 Mar – 7 Apr
8-10 wk
2 Jun
3 wk after
Oregano
Origanum vulgare
27 Mar – 10 Apr
6-8 wk
22 May
1 wk after
10 Jun
5 wk after
Parsley
Petroselinum crispum
6 – 20 Mar
6-8 wk
1 May
2 wk before
12 May
1 wk after
Rosemary
Salvia rosmarinus
Fleece
26 Feb – 26 Mar
10-14 wk
4 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
Greenhouse
3 – 10 Jun
3-4 wk
1 Jul
7 wk after
Cornflower
Centaurea cyanus
1 May
2 wk before
12 May
1 wk after
Statice
Limonium sinuatum
Fleece
13 – 27 Apr
8-10 wk
22 Jun
5 wk after
Sweet William
Dianthus barbatus
6 – 20 Mar
6-8 wk
1 May
2 wk before
24 May
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
27 Apr – 11 May
6-8 wk
22 Jun
5 wk after
14 Jul
8 wk after
Dahlia
Dahlia × pinnata
3 – 17 May
6-8 wk
28 Jun
6 wk after
Dahlia (tubers)
Dahlia × pinnata
3 – 31 May
4-8 wk
28 Jun
6 wk after
10 Jun
5 wk after
Foxglove
Digitalis purpurea
20 Feb – 6 Mar
8-10 wk
1 May
2 wk before
29 May
3 wk after
Busy lizzie
Impatiens walleriana
18 Apr – 16 May
8-12 wk
11 Jul
7 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 May
6-8 wk
3 Jul
7 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
26 Mar – 9 Apr
8-10 wk
4 Jun
3 wk after
Love in a mist
Nigella damascena
12 May
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
27 Apr – 11 May
6-8 wk
22 Jun
5 wk after
14 Jul
8 wk after
Tall verbena
Verbena bonariensis
Fleece
12 Mar – 9 Apr
8-12 wk
4 Jun
3 wk after
Cardoon
Cynara cardunculus
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
30 Mar – 27 Apr
8-12 wk
22 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
27 Apr – 11 May
6-8 wk
22 Jun
5 wk after
Corn poppy
Papaver rhoeas
12 May
1 wk after
Snapdragon
Antirrhinum majus
14 Feb – 14 Mar
8-12 wk
9 May
1 wk before
24 May
2 wk after
Flossflower
Ageratum houstonianum
Fleece
22 Apr – 6 May
8-10 wk
1 Jul
7 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Mar
5-8 wk
1 May
2 wk before
Stock
Matthiola incana
14 – 28 Mar
6-8 wk
9 May
1 wk before
29 May
3 wk after
Wormwood
Artemisia absinthium
6 – 20 Mar
6-8 wk
1 May
2 wk before
29 May
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
11 – 25 May
4-6 wk
22 Jun
5 wk after
Pansy
Viola × wittrockiana
11 – 25 Feb
8-10 wk
22 Apr
3 wk before
24 May
2 wk after
Petunia
Petunia
Fleece
30 Mar – 27 Apr
8-12 wk
22 Jun
5 wk after
Scabious
Scabiosa atropurpurea
Fleece
9 – 23 Apr
6-8 wk
4 Jun
3 wk after
20 Jun
5 wk after
Zinnia
Zinnia elegans
22 May – 5 Jun
4-6 wk
3 Jul
7 wk after
Common morning glory
Ipomoea purpurea
Fleece
27 May – 10 Jun
3-5 wk
1 Jul
7 wk after
Cosmos
Cosmos bipinnatus
Fleece
11 – 25 May
4-6 wk
22 Jun
5 wk after
20 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
14 Apr – 12 May
8-12 wk
7 Jul
7 wk after
Bee balm
Monarda didyma
21 Feb – 21 Mar
8-12 wk
16 May
Vid frost
10 Jun
5 wk after
Yarrow
Achillea millefolium
6 – 20 Mar
6-8 wk
1 May
2 wk before
29 May
3 wk after
Safflower
Carthamus tinctorius
1 May
2 wk before
12 May
1 wk after
Iceland poppy
Papaver nudicaule
25 Feb – 11 Mar
6-8 wk
22 Apr
3 wk before
8 May
Vid frost
Bishop's flower
Ammi majus
15 – 29 Apr
4-6 wk
27 May
1 wk after
29 May
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
30 Mar – 13 Apr
10-12 wk
22 Jun
5 wk after
Sunflower
Helianthus annuus
Fleece
25 May – 1 Jun
3-4 wk
22 Jun
5 wk after
6 Jun
3 wk after
China aster
Callistephus chinensis
Fleece
27 Apr – 11 May
6-8 wk
22 Jun
5 wk after
20 Jun
5 wk after
Annual phlox
Phlox drummondii
26 Apr – 10 May
6-8 wk
21 Jun
5 wk after
26 Jun
7 wk after
Hollyhock
Alcea rosea
6 – 20 Mar
6-8 wk
1 May
2 wk before
29 May
3 wk after
Delphinium
Delphinium elatum
10 Mar – 7 Apr
8-12 wk
2 Jun
3 wk after
10 Jun
5 wk after
African marigold
Tagetes erecta
8 – 22 May
6-8 wk
3 Jul
7 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
6-8 wk
15 Jun
5 wk after
26 Jun
7 wk after
Woodland sage
Salvia nemorosa
13 – 27 Mar
8-10 wk
22 May
1 wk after
10 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
22 Apr – 20 May
6-10 wk
1 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
12 May
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
13 – 27 Apr
8-10 wk
22 Jun
5 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Mar
6-8 wk
1 May
2 wk before
29 May
3 wk after
Current date Soon Date passed