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-1.0°
Slight frost tomorrow morning at 07:00. Frost temperatures between tomorrow 03:00 – 08:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 9 May Frost 1 of 4 years · 20 years of data
Frost-free season 167 days 9 May – 23 Oct
Probability that frost is over

75% = 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
30 Mar – 13 Apr
5-7 wk
18 May
1 wk after
5 Apr
5 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
4-6 wk
26 May
3 wk after
5 May
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
27 Mar – 24 Apr
8-12 wk
19 Jun
6 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
25 Feb – 11 Mar
5-7 wk
15 Apr
4 wk before
1 May
2 wk before
Cucumber
Cucumis sativus
Greenhouse
22 – 29 May
3-4 wk
19 Jun
6 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
15 – 22 May
4-5 wk
19 Jun
6 wk after
22 May
2 wk after
Butter bean
Phaseolus lunatus
Greenhouse
22 – 29 May
3-4 wk
19 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
14 Feb – 14 Mar
8-12 wk
9 May
Vid frost
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
2 wk after
Sweetcorn
Zea mays
Fleece
27 May – 3 Jun
3-4 wk
24 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
11 – 18 May
3-4 wk
8 Jun
5 wk after
22 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 May
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
25 Feb – 11 Mar
5-7 wk
15 Apr
4 wk before
1 May
2 wk before
Potato
Solanum tuberosum
15 – 29 May
4-6 wk
26 Jun
8 wk after
17 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Feb – 11 Mar
5-7 wk
15 Apr
4 wk before
5 May
1 wk before
Pumpkin
Cucurbita pepo
Fleece
6 – 13 Jun
3-4 wk
4 Jul
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
11 – 18 May
3-4 wk
8 Jun
5 wk after
22 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
4-6 wk
26 May
3 wk after
Lettuce
Lactuca sativa
4 – 11 Apr
3-4 wk
2 May
1 wk before
5 May
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Mar – 4 Apr
4-6 wk
2 May
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Mar – 10 Apr
2-4 wk
24 Apr
3 wk before
1 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 May
1 wk before
Spinach
Spinacia oleracea
27 Mar – 3 Apr
3-4 wk
24 Apr
3 wk before
26 Apr
3 wk before
Sweet potato
Ipomoea batatas
27 May – 10 Jun
4-6 wk
8 Jul
11 wk after
Tomato
Solanum lycopersicum
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
6 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
22 May – 5 Jun
2-4 wk
19 Jun
6 wk after
4 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
4-6 wk
26 May
3 wk after
Pea
Pisum sativum
27 Mar – 3 Apr
3-4 wk
24 Apr
3 wk before
5 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
Fleece
13 – 27 May
4-6 wk
24 Jun
7 wk after
Lemon balm
Melissa officinalis
28 Feb – 14 Mar
8-10 wk
9 May
Vid frost
3 Jun
4 wk after
Dill
Anethum graveolens
5 May
1 wk before
Chives
Allium schoenoprasum
18 Feb – 4 Mar
6-8 wk
15 Apr
4 wk before
5 May
1 wk before
Spearmint
Mentha spicata
30 Jan – 27 Feb
8-12 wk
24 Apr
3 wk before
3 Jun
4 wk after
Coriander
Coriandrum sativum
22 May
2 wk after
Sage
Salvia officinalis
30 Mar – 13 Apr
8-10 wk
8 Jun
5 wk after
Thyme
Thymus vulgaris
17 – 31 Mar
8-10 wk
26 May
3 wk after
Oregano
Origanum vulgare
20 Mar – 3 Apr
6-8 wk
15 May
1 wk after
3 Jun
4 wk after
Parsley
Petroselinum crispum
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
5 May
1 wk before
Rosemary
Salvia rosmarinus
Fleece
20 Feb – 20 Mar
10-14 wk
29 May
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
6 – 13 Jun
3-4 wk
4 Jul
8 wk after
Cornflower
Centaurea cyanus
24 Apr
3 wk before
5 May
1 wk before
Statice
Limonium sinuatum
Fleece
10 – 24 Apr
8-10 wk
19 Jun
6 wk after
Sweet William
Dianthus barbatus
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
17 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
6 wk after
24 Jun
7 wk after
Dahlia
Dahlia × pinnata
Fleece
15 – 29 Apr
6-8 wk
10 Jun
5 wk after
Dahlia (tubers)
Dahlia × pinnata
26 Apr – 24 May
4-8 wk
21 Jun
7 wk after
3 Jun
4 wk after
Foxglove
Digitalis purpurea
13 – 27 Feb
8-10 wk
24 Apr
3 wk before
22 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
11 Apr – 9 May
8-12 wk
4 Jul
8 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
6 wk after
Hyacinth bean
Dolichos lablab
Season too short
23 May – 6 Jun
4-6 wk
4 Jul
8 wk after
Chinese lantern
Physalis alkekengi
Fleece
20 Mar – 3 Apr
8-10 wk
29 May
3 wk after
Love in a mist
Nigella damascena
5 May
1 wk before
Strawflower
Xerochrysum bracteatum
Greenhouse
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
11 Jun
5 wk after
Tall verbena
Verbena bonariensis
Fleece
6 Mar – 3 Apr
8-12 wk
29 May
3 wk after
Cardoon
Cynara cardunculus
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
6 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
24 Apr – 8 May
6-8 wk
19 Jun
6 wk after
Corn poppy
Papaver rhoeas
5 May
1 wk before
Snapdragon
Antirrhinum majus
7 Feb – 7 Mar
8-12 wk
2 May
1 wk before
17 May
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
10 – 24 Apr
8-10 wk
19 Jun
6 wk after
Sweet pea
Lathyrus odoratus
27 Feb – 20 Mar
5-8 wk
24 Apr
3 wk before
Stock
Matthiola incana
7 – 21 Mar
6-8 wk
2 May
1 wk before
22 May
2 wk after
Wormwood
Artemisia absinthium
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
22 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
8 – 22 May
4-6 wk
19 Jun
6 wk after
Pansy
Viola × wittrockiana
4 – 18 Feb
8-10 wk
15 Apr
4 wk before
17 May
1 wk after
Petunia
Petunia
Greenhouse
12 Mar – 9 Apr
8-12 wk
4 Jun
4 wk after
Scabious
Scabiosa atropurpurea
Fleece
3 – 17 Apr
6-8 wk
29 May
3 wk after
4 Jun
4 wk after
Zinnia
Zinnia elegans
Fleece
8 – 22 May
4-6 wk
19 Jun
6 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
15 – 29 May
3-5 wk
19 Jun
6 wk after
Cosmos
Cosmos bipinnatus
Fleece
8 – 22 May
4-6 wk
19 Jun
6 wk after
4 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
11 Apr – 9 May
8-12 wk
4 Jul
8 wk after
Bee balm
Monarda didyma
14 Feb – 14 Mar
8-12 wk
9 May
Vid frost
3 Jun
4 wk after
Yarrow
Achillea millefolium
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
22 May
2 wk after
Safflower
Carthamus tinctorius
24 Apr
3 wk before
5 May
1 wk before
Iceland poppy
Papaver nudicaule
18 Feb – 4 Mar
6-8 wk
15 Apr
4 wk before
1 May
2 wk before
Bishop's flower
Ammi majus
8 – 22 Apr
4-6 wk
20 May
2 wk after
22 May
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
27 Mar – 10 Apr
10-12 wk
19 Jun
6 wk after
Sunflower
Helianthus annuus
Greenhouse
7 – 14 May
3-4 wk
4 Jun
4 wk after
8 May
China aster
Callistephus chinensis
Greenhouse
9 – 23 Apr
6-8 wk
4 Jun
4 wk after
22 May
2 wk after
Annual phlox
Phlox drummondii
19 Apr – 3 May
6-8 wk
14 Jun
6 wk after
19 Jun
6 wk after
Hollyhock
Alcea rosea
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
22 May
2 wk after
Delphinium
Delphinium elatum
3 – 31 Mar
8-12 wk
26 May
3 wk after
3 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
24 Apr – 8 May
6-8 wk
19 Jun
6 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Apr
6-8 wk
8 Jun
5 wk after
19 Jun
6 wk after
Woodland sage
Salvia nemorosa
6 – 20 Mar
8-10 wk
15 May
1 wk after
3 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
10 Apr – 8 May
6-10 wk
19 Jun
6 wk after
California goldenpoppy
Eschscholzia californica
5 May
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
10 – 24 Apr
8-10 wk
19 Jun
6 wk after
Water forget-me-not
Myosotis scorpioides
27 Feb – 13 Mar
6-8 wk
24 Apr
3 wk before
22 May
2 wk after
Current date Soon Date passed