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-2.5°
Slight frost tonight at 01:00. Frost temperatures between 19:00 – tomorrow 07:00. Bring in or cover sensitive plants
0.3°
Last 24h: Near frost recorded this morning at 09:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 6 May Frost 3 of 4 years · 20 years of data
Frost-free season 133 days 6 May – 16 Sep
Probability that frost is over

25% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

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