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-0.5°
Slight frost tomorrow at 23:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 15 May Frost 3 of 4 years · 20 years of data
Frost-free season 122 days 15 May – 14 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
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
27 Mar – 10 Apr
16 Jun
5-7 wk
15 May
21 Jul
0 wk
8 May
11 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 Apr
28 Jun
4-6 wk
15 May
26 Jul
0 wk
8 May
16 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
3 – 31 Mar
26 Mar
8-12 wk
26 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
27 Mar – 10 Apr
11 Jun
5-7 wk
15 May
16 Jul
0 wk
3 May
6 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
6 – 13 May
20 May
3-4 wk
3 Jun
10 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
16 – 23 May
4-5 wk
20 Jun
5 wk after
20 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
30 May – 6 Jun
3-4 wk
27 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
20 Feb – 20 Mar
18 Mar
8-12 wk
15 May
0 wk
25 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 May
2 Jun
1 wk before
8 May
23 May
1 wk before
Maize
Zea mays
Fleece
28 Apr – 5 May
10 May
3-4 wk
26 May
31 May
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
20 Jun
3-4 wk
21 May
11 Jul
1 wk after
25 May
1 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
15 May
6 Jul
0 wk
3 May
26 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
27 Mar – 10 Apr
11 Jun
5-7 wk
15 May
16 Jul
0 wk
3 May
6 Jul
2 wk before
Potato
Solanum tuberosum
8 – 22 Apr
17 May
4-6 wk
20 May
14 Jun
1 wk after
20 May
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
27 Mar – 10 Apr
21 Jun
5-7 wk
15 May
26 Jul
0 wk
8 May
16 Jul
1 wk before
Pumpkin
Cucurbita pepo
23 – 30 May
25 May
3-4 wk
20 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
21 May
3-4 wk
21 May
11 Jun
1 wk after
25 May
1 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Lettuce
Lactuca sativa
17 – 24 Apr
10 Jul
3-4 wk
15 May
31 Jul
0 wk
8 May
21 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
5 – 19 Apr
21 May
2-4 wk
3 May
4 Jun
2 wk before
3 May
25 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 May
2 Jun
1 wk before
8 May
23 May
1 wk before
Spinach
Spinacia oleracea
17 – 24 Apr
25 Jul
3-4 wk
15 May
15 Aug
0 wk
27 Apr
5 Aug
3 wk before
Sweet potato
Ipomoea batatas
11 – 25 Jun
4-6 wk
23 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
31 Mar – 14 Apr
19 Apr
6-8 wk
26 May
31 May
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
6 – 20 May
27 May
2-4 wk
3 Jun
10 Jun
3 wk after
20 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 Apr
23 Jun
4-6 wk
15 May
21 Jul
0 wk
Garden pea
Pisum sativum
17 – 24 Apr
25 Jun
3-4 wk
15 May
16 Jul
0 wk
8 May
6 Jul
1 wk before

Herbs

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

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
6 – 13 May
26 May
3-4 wk
3 Jun
16 Jun
3 wk after
Cornflower
Centaurea cyanus
15 May
16 Jul
0 wk
8 May
6 Jul
1 wk before
Statice
Limonium sinuatum
25 Mar – 8 Apr
19 Apr
8-10 wk
3 Jun
14 Jun
3 wk after
Sweet William
Dianthus barbatus
20 Mar – 3 Apr
6-8 wk
15 May
0 wk
20 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
8 – 22 Apr
3 May
6-8 wk
3 Jun
14 Jun
3 wk after
23 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
3 – 17 Apr
7 May
6-8 wk
29 May
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
10 Apr – 8 May
21 May
4-8 wk
5 Jun
18 Jun
3 wk after
5 Jun
8 Jun
3 wk after
Foxglove
Digitalis purpurea
6 – 20 Mar
8-10 wk
15 May
0 wk
25 May
1 wk after
Busy lizzie
Impatiens walleriana
28 Mar – 25 Apr
6 Jun
8-12 wk
20 Jun
1 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
8 – 22 Apr
13 May
6-8 wk
3 Jun
24 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
22 Apr – 6 May
4-6 wk
3 Jun
3 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
6 Apr
8-10 wk
21 May
1 Jun
1 wk after
Love in a mist
Nigella damascena
15 May
1 Jul
0 wk
8 May
21 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
8 – 22 Apr
23 Apr
6-8 wk
3 Jun
4 Jun
3 wk after
23 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
26 Feb – 26 Mar
6 Apr
8-12 wk
21 May
1 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
20 Feb – 20 Mar
22 Mar
8-12 wk
15 May
17 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
11 Mar – 8 Apr
11 Apr
8-12 wk
3 Jun
6 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
8 – 22 Apr
25 Apr
6-8 wk
3 Jun
6 Jun
3 wk after
Corn poppy
Papaver rhoeas
15 May
16 Jul
0 wk
8 May
6 Jul
1 wk before
Snapdragon
Antirrhinum majus
20 Feb – 20 Mar
11 May
8-12 wk
15 May
6 Jul
0 wk
20 May
26 Jun
1 wk after
Flossflower
Ageratum houstonianum
11 – 25 Apr
29 Apr
8-10 wk
20 Jun
24 Jun
5 wk after
Sweet pea
Lathyrus odoratus
20 Mar – 10 Apr
1 Jun
5-8 wk
15 May
6 Jul
0 wk
Stock
Matthiola incana
20 Mar – 3 Apr
4 Jun
6-8 wk
15 May
16 Jul
0 wk
25 May
6 Jul
1 wk after
Wormwood
Artemisia absinthium
20 Mar – 3 Apr
5 May
6-8 wk
15 May
16 Jun
0 wk
25 May
6 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
14 – 28 Apr
16 May
4-6 wk
26 May
13 Jun
2 wk after
Garden pansy
Viola × wittrockiana
6 – 20 Mar
21 May
8-10 wk
15 May
16 Jul
0 wk
20 May
6 Jul
1 wk after
Petunia
Petunia
11 Mar – 8 Apr
19 Apr
8-12 wk
3 Jun
14 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
20 Apr
6-8 wk
21 May
1 Jun
1 wk after
20 Jun
5 wk after
Common zinnia
Zinnia elegans
22 Apr – 6 May
19 May
4-6 wk
3 Jun
16 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
29 Apr – 13 May
26 May
3-5 wk
3 Jun
16 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
22 Apr – 6 May
21 May
4-6 wk
3 Jun
18 Jun
3 wk after
20 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
28 Mar – 25 Apr
11 May
8-12 wk
20 Jun
6 Jul
5 wk after
Bee balm
Monarda didyma
20 Feb – 20 Mar
21 Apr
8-12 wk
15 May
16 Jun
0 wk
5 Jun
6 Jun
3 wk after
Yarrow
Achillea millefolium
20 Mar – 3 Apr
5 Apr
6-8 wk
15 May
17 May
0 wk
25 May
1 wk after
Safflower
Carthamus tinctorius
15 May
16 Jun
0 wk
8 May
6 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
20 Mar – 3 Apr
25 May
6-8 wk
15 May
6 Jul
0 wk
6 Apr
26 Jun
6 wk before
Bishop's flower
Ammi majus
3 – 17 Apr
8 Jun
4-6 wk
15 May
6 Jul
0 wk
25 May
26 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
3 – 17 Mar
27 Mar
10-12 wk
26 May
5 Jun
2 wk after
Sunflower
Helianthus annuus
6 – 13 May
28 May
3-4 wk
3 Jun
18 Jun
3 wk after
5 Jun
8 Jun
3 wk after
China aster
Callistephus chinensis
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
3 wk after
20 Jun
5 wk after
Annual phlox
Phlox drummondii
31 Mar – 14 Apr
13 May
6-8 wk
26 May
24 Jun
2 wk after
20 Jun
5 wk after
Hollyhock
Alcea rosea
20 Mar – 3 Apr
6-8 wk
15 May
0 wk
25 May
1 wk after
Alpine delphinium
Delphinium elatum
20 Feb – 20 Mar
21 Apr
8-12 wk
15 May
16 Jun
0 wk
5 Jun
6 Jun
3 wk after
African marigold
Tagetes erecta
8 – 22 Apr
13 May
6-8 wk
3 Jun
24 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
7 May
6-8 wk
21 May
18 Jun
1 wk after
20 Jun
5 wk after
Wood sage
Salvia nemorosa
6 – 20 Mar
11 Apr
8-10 wk
15 May
6 Jun
0 wk
5 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
25 Mar – 22 Apr
5 May
6-10 wk
3 Jun
16 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
15 May
9 Jul
0 wk
8 May
29 Jun
1 wk before
Painted tongue
Salpiglossis sinuata
25 Mar – 8 Apr
17 Apr
8-10 wk
3 Jun
12 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
20 Mar – 3 Apr
5 May
6-8 wk
15 May
16 Jun
0 wk
25 May
6 Jun
1 wk after