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-2.3°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 20 May Frost 3 of 4 years · 20 years of data
Frost-free season 87 days 20 May – 15 Aug
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
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
1 – 15 Apr
11 Jun
5-7 wk
20 May
16 Jul
0 wk
21 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Apr
23 Jun
4-6 wk
20 May
21 Jul
0 wk
21 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
8 Mar – 5 Apr
12 Mar
8-12 wk
31 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
1 – 15 Apr
6 Jun
5-7 wk
20 May
11 Jul
0 wk
20 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
12 – 19 May
3-4 wk
9 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
Fleece
5 – 12 May
7 May
4-5 wk
9 Jun
3 wk after
14 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
2 – 9 Jun
3-4 wk
30 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
25 Feb – 25 Mar
17 Mar
8-12 wk
20 May
0 wk
26 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 May
25 May
0 wk
21 May
0 wk
Maize
Zea mays
Greenhouse
26 Apr – 3 May
19 May
3-4 wk
24 May
9 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
3 Jun
3-4 wk
26 May
24 Jun
1 wk after
2 Jun
14 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 May
25 Jun
0 wk
20 May
15 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
1 – 15 Apr
6 Jun
5-7 wk
20 May
11 Jul
0 wk
20 May
1 Jul
0 wk
Potato
Solanum tuberosum
18 Apr – 2 May
4 May
4-6 wk
30 May
1 Jun
1 wk after
30 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Apr
10 Jun
5-7 wk
20 May
15 Jul
0 wk
21 May
5 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
12 – 19 May
3 Jun
3-4 wk
9 Jun
24 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
14 May
3-4 wk
26 May
4 Jun
1 wk after
2 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Apr
18 Jun
4-6 wk
20 May
16 Jul
0 wk
Lettuce
Lactuca sativa
22 – 29 Apr
29 Jun
3-4 wk
20 May
20 Jul
0 wk
21 May
10 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
8 – 22 Apr
18 Jun
4-6 wk
20 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
22 Apr – 6 May
18 May
2-4 wk
20 May
1 Jun
0 wk
20 May
22 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 May
25 May
0 wk
21 May
0 wk
Spinach
Spinacia oleracea
22 – 29 Apr
19 Jul
3-4 wk
20 May
9 Aug
0 wk
17 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
14 – 28 Jun
4-6 wk
26 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
29 Mar – 12 Apr
28 Apr
6-8 wk
24 May
9 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 May
13 May
2-4 wk
9 Jun
3 wk after
2 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Apr
18 Jun
4-6 wk
20 May
16 Jul
0 wk
Garden pea
Pisum sativum
22 – 29 Apr
14 Jun
3-4 wk
20 May
5 Jul
0 wk
21 May
25 Jun
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
28 Apr – 12 May
12 May
4-6 wk
9 Jun
9 Jun
3 wk after
Lemon balm
Melissa officinalis
11 – 25 Mar
10 May
8-10 wk
20 May
5 Jul
0 wk
14 Jun
25 Jun
4 wk after
Dill
Anethum graveolens
21 May
24 Jun
0 wk
Wild chives
Allium schoenoprasum
25 Mar – 8 Apr
30 May
6-8 wk
20 May
11 Jul
0 wk
21 May
1 Jul
0 wk
Spearmint
Mentha spicata
25 Feb – 25 Mar
16 May
8-12 wk
20 May
11 Jul
0 wk
14 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
20 May
14 Jul
0 wk
2 Jun
4 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
1 May
8-10 wk
26 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
11 – 25 Mar
6 May
8-10 wk
20 May
1 Jul
0 wk
Oregano
Origanum vulgare
25 Mar – 8 Apr
20 May
6-8 wk
20 May
1 Jul
0 wk
14 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
25 Mar – 8 Apr
20 May
6-8 wk
20 May
1 Jul
0 wk
21 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
11 Feb – 11 Mar
16 Mar
10-14 wk
20 May
25 May
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
Fleece
12 – 19 May
19 May
3-4 wk
9 Jun
9 Jun
3 wk after
Cornflower
Centaurea cyanus
20 May
11 Jul
0 wk
21 May
1 Jul
0 wk
Statice
Limonium sinuatum
31 Mar – 14 Apr
4 Apr
8-10 wk
9 Jun
3 wk after
Sweet William
Dianthus barbatus
25 Mar – 8 Apr
6-8 wk
20 May
0 wk
30 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
18 Apr
6-8 wk
9 Jun
3 wk after
26 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
27 Apr
6-8 wk
4 Jun
8 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
19 Apr – 17 May
11 May
4-8 wk
14 Jun
4 wk after
14 Jun
4 wk after
Foxglove
Digitalis purpurea
11 – 25 Mar
8-10 wk
20 May
0 wk
2 Jun
2 wk after
Busy lizzie
Impatiens walleriana
31 Mar – 28 Apr
30 May
8-12 wk
23 Jun
25 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
28 Apr
6-8 wk
9 Jun
9 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
3 wk after
Chinese lantern
Physalis alkekengi
Fleece
11 – 25 Mar
10 Apr
8-10 wk
20 May
5 Jun
0 wk
Love in a mist
Nigella damascena
20 May
20 Jun
0 wk
21 May
10 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
5 – 19 Apr
25 Apr
6-8 wk
31 May
6 Jun
2 wk after
9 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
Fleece
25 Feb – 25 Mar
10 Apr
8-12 wk
20 May
5 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
1 – 29 Mar
16 Mar
8-12 wk
24 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
17 Mar – 14 Apr
4 Apr
8-12 wk
9 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
14 – 28 Apr
18 Apr
6-8 wk
9 Jun
3 wk after
Corn poppy
Papaver rhoeas
20 May
5 Jul
0 wk
21 May
25 Jun
0 wk
Snapdragon
Antirrhinum majus
25 Feb – 25 Mar
30 Apr
8-12 wk
20 May
25 Jun
0 wk
30 May
15 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
31 Mar – 14 Apr
1 May
8-10 wk
9 Jun
26 Jun
3 wk after
Sweet pea
Lathyrus odoratus
25 Mar – 15 Apr
27 May
5-8 wk
20 May
1 Jul
0 wk
Stock
Matthiola incana
25 Mar – 8 Apr
24 May
6-8 wk
20 May
5 Jul
0 wk
2 Jun
25 Jun
2 wk after
Wormwood
Artemisia absinthium
25 Mar – 8 Apr
30 Apr
6-8 wk
20 May
11 Jun
0 wk
2 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
28 Apr – 12 May
4-6 wk
9 Jun
3 wk after
Garden pansy
Viola × wittrockiana
11 – 25 Mar
16 May
8-10 wk
20 May
11 Jul
0 wk
30 May
1 Jul
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
4 Apr
8-12 wk
9 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
Fleece
25 Mar – 8 Apr
24 Apr
6-8 wk
20 May
5 Jun
0 wk
14 Jun
4 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
12 May
4-6 wk
9 Jun
9 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
19 May
3-5 wk
9 Jun
9 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
11 May
4-6 wk
9 Jun
3 wk after
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
31 Mar – 28 Apr
4 May
8-12 wk
23 Jun
29 Jun
5 wk after
Bee balm
Monarda didyma
25 Feb – 25 Mar
10 Apr
8-12 wk
20 May
5 Jun
0 wk
14 Jun
4 wk after
Yarrow
Achillea millefolium
25 Mar – 8 Apr
31 Mar
6-8 wk
20 May
0 wk
2 Jun
2 wk after
Safflower
Carthamus tinctorius
20 May
10 Jun
0 wk
21 May
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
25 Mar – 8 Apr
20 May
6-8 wk
20 May
1 Jul
0 wk
4 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
8 – 22 Apr
28 May
4-6 wk
20 May
25 Jun
0 wk
2 Jun
15 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
8 – 22 Mar
23 Mar
10-12 wk
31 May
1 Jun
2 wk after
Sunflower
Helianthus annuus
12 – 19 May
3-4 wk
9 Jun
3 wk after
14 Jun
4 wk after
China aster
Callistephus chinensis
14 – 28 Apr
24 Apr
6-8 wk
9 Jun
3 wk after
2 Jul
6 wk after
Annual phlox
Phlox drummondii
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
2 wk after
2 Jul
6 wk after
Hollyhock
Alcea rosea
25 Mar – 8 Apr
6-8 wk
20 May
0 wk
2 Jun
2 wk after
Alpine delphinium
Delphinium elatum
25 Feb – 25 Mar
10 Apr
8-12 wk
20 May
5 Jun
0 wk
14 Jun
4 wk after
African marigold
Tagetes erecta
14 – 28 Apr
28 Apr
6-8 wk
9 Jun
9 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
14 Apr
6-8 wk
26 May
26 May
1 wk after
2 Jul
6 wk after
Wood sage
Salvia nemorosa
11 – 25 Mar
31 Mar
8-10 wk
20 May
26 May
0 wk
14 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
31 Mar – 28 Apr
28 Apr
6-10 wk
9 Jun
9 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
20 May
24 Jun
0 wk
21 May
14 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
22 Mar – 5 Apr
9 Apr
8-10 wk
31 May
4 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
25 Mar – 8 Apr
30 Apr
6-8 wk
20 May
11 Jun
0 wk
2 Jun
2 wk after