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0.4°
Last 24h: Near frost recorded tonight at 02:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 18 May Frost 3 of 4 years · 20 years of data
Frost-free season 112 days 18 May – 7 Sep
Probability that frost is over

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

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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)
30 Mar – 13 Apr
11 Jun
5-7 wk
18 May
16 Jul
0 wk
19 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
6 – 20 Apr
23 Jun
4-6 wk
18 May
21 Jul
0 wk
19 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
6 Mar – 3 Apr
19 Mar
8-12 wk
29 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Mar – 13 Apr
6 Jun
5-7 wk
18 May
11 Jul
0 wk
18 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
10 – 17 May
13 May
3-4 wk
7 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
Fleece
3 – 10 May
29 May
4-5 wk
7 Jun
26 Jun
3 wk after
12 Jun
16 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
31 May – 7 Jun
3-4 wk
28 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
23 Feb – 23 Mar
11 Mar
8-12 wk
18 May
0 wk
31 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 May
26 May
0 wk
19 May
0 wk
Maize
Zea mays
Fleece
1 – 8 May
3 May
3-4 wk
29 May
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
26 Apr – 3 May
25 Jun
3-4 wk
24 May
16 Jul
1 wk after
31 May
6 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 May
29 Jun
0 wk
18 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Mar – 13 Apr
6 Jun
5-7 wk
18 May
11 Jul
0 wk
18 May
1 Jul
0 wk
Potato
Solanum tuberosum
16 – 30 Apr
29 Apr
4-6 wk
28 May
1 wk after
28 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Mar – 13 Apr
14 Jun
5-7 wk
18 May
19 Jul
0 wk
19 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
10 – 17 May
2 Jun
3-4 wk
7 Jun
23 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
26 Apr – 3 May
12 May
3-4 wk
24 May
2 Jun
1 wk after
31 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
6 – 20 Apr
18 Jun
4-6 wk
18 May
16 Jul
0 wk
Lettuce
Lactuca sativa
20 – 27 Apr
3 Jul
3-4 wk
18 May
24 Jul
0 wk
19 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
6 – 20 Apr
18 Jun
4-6 wk
18 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Apr – 4 May
13 May
2-4 wk
18 May
27 May
0 wk
18 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 May
26 May
0 wk
19 May
0 wk
Spinach
Spinacia oleracea
20 – 27 Apr
20 Jul
3-4 wk
18 May
10 Aug
0 wk
15 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
12 – 26 Jun
4-6 wk
24 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
3 – 17 Apr
12 Apr
6-8 wk
29 May
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
10 – 24 May
20 May
2-4 wk
7 Jun
3 wk after
30 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
6 – 20 Apr
18 Jun
4-6 wk
18 May
16 Jul
0 wk
Garden pea
Pisum sativum
20 – 27 Apr
18 Jun
3-4 wk
18 May
9 Jul
0 wk
19 May
29 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
26 Apr – 10 May
11 May
4-6 wk
7 Jun
8 Jun
3 wk after
Lemon balm
Melissa officinalis
9 – 23 Mar
14 May
8-10 wk
18 May
9 Jul
0 wk
12 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
19 May
16 Jul
0 wk
Wild chives
Allium schoenoprasum
23 Mar – 6 Apr
30 May
6-8 wk
18 May
11 Jul
0 wk
19 May
1 Jul
0 wk
Spearmint
Mentha spicata
23 Feb – 23 Mar
16 May
8-12 wk
18 May
11 Jul
0 wk
12 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
18 May
5 Aug
0 wk
31 May
26 Jul
2 wk after
Garden sage
Salvia officinalis
15 – 29 Mar
1 May
8-10 wk
24 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
9 – 23 Mar
6 May
8-10 wk
18 May
1 Jul
0 wk
Oregano
Origanum vulgare
23 Mar – 6 Apr
20 May
6-8 wk
18 May
1 Jul
0 wk
12 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
23 Mar – 6 Apr
20 May
6-8 wk
18 May
1 Jul
0 wk
19 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
15 Feb – 15 Mar
18 Mar
10-14 wk
24 May
27 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
10 – 17 May
18 May
3-4 wk
7 Jun
8 Jun
3 wk after
Cornflower
Centaurea cyanus
18 May
11 Jul
0 wk
19 May
1 Jul
0 wk
Statice
Limonium sinuatum
29 Mar – 12 Apr
13 Apr
8-10 wk
7 Jun
8 Jun
3 wk after
Sweet William
Dianthus barbatus
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
28 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
12 – 26 Apr
27 Apr
6-8 wk
7 Jun
8 Jun
3 wk after
24 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
7 – 21 Apr
2 May
6-8 wk
2 Jun
13 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
17 Apr – 15 May
16 May
4-8 wk
12 Jun
13 Jun
4 wk after
12 Jun
4 wk after
Foxglove
Digitalis purpurea
9 – 23 Mar
8-10 wk
18 May
0 wk
31 May
2 wk after
Busy lizzie
Impatiens walleriana
29 Mar – 26 Apr
29 May
8-12 wk
21 Jun
24 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
12 – 26 Apr
7 May
6-8 wk
7 Jun
18 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
26 Apr – 10 May
4-6 wk
7 Jun
3 wk after
Chinese lantern
Physalis alkekengi
15 – 29 Mar
11 Apr
8-10 wk
24 May
6 Jun
1 wk after
Love in a mist
Nigella damascena
18 May
24 Jun
0 wk
19 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
3 – 17 Apr
27 Apr
6-8 wk
29 May
8 Jun
2 wk after
7 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
1 – 29 Mar
11 Apr
8-12 wk
24 May
6 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
27 Feb – 27 Mar
17 Mar
8-12 wk
22 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
6 Mar – 3 Apr
18 Apr
8-12 wk
29 May
13 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
3 – 17 Apr
2 May
6-8 wk
29 May
13 Jun
2 wk after
Corn poppy
Papaver rhoeas
18 May
9 Jul
0 wk
19 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
23 Feb – 23 Mar
4 May
8-12 wk
18 May
29 Jun
0 wk
28 May
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
29 Mar – 12 Apr
3 May
8-10 wk
7 Jun
28 Jun
3 wk after
Sweet pea
Lathyrus odoratus
23 Mar – 13 Apr
27 May
5-8 wk
18 May
1 Jul
0 wk
Stock
Matthiola incana
23 Mar – 6 Apr
28 May
6-8 wk
18 May
9 Jul
0 wk
31 May
29 Jun
2 wk after
Wormwood
Artemisia absinthium
23 Mar – 6 Apr
30 Apr
6-8 wk
18 May
11 Jun
0 wk
31 May
1 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
17 Apr – 1 May
11 May
4-6 wk
29 May
8 Jun
2 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Mar
16 May
8-10 wk
18 May
11 Jul
0 wk
28 May
1 Jul
1 wk after
Petunia
Petunia
15 Mar – 12 Apr
13 Apr
8-12 wk
7 Jun
8 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
29 Mar – 12 Apr
25 Apr
6-8 wk
24 May
6 Jun
1 wk after
30 Jun
6 wk after
Common zinnia
Zinnia elegans
26 Apr – 10 May
11 May
4-6 wk
7 Jun
8 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
3 – 17 May
18 May
3-5 wk
7 Jun
8 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
26 Apr – 10 May
16 May
4-6 wk
7 Jun
13 Jun
3 wk after
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
29 Mar – 26 Apr
3 May
8-12 wk
21 Jun
28 Jun
5 wk after
Bee balm
Monarda didyma
23 Feb – 23 Mar
14 Apr
8-12 wk
18 May
9 Jun
0 wk
12 Jun
4 wk after
Yarrow
Achillea millefolium
23 Mar – 6 Apr
31 Mar
6-8 wk
18 May
0 wk
31 May
2 wk after
Safflower
Carthamus tinctorius
18 May
11 Jun
0 wk
19 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
23 Mar – 6 Apr
20 May
6-8 wk
18 May
1 Jul
0 wk
2 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
6 – 20 Apr
1 Jun
4-6 wk
18 May
29 Jun
0 wk
31 May
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
6 – 20 Mar
26 Mar
10-12 wk
29 May
4 Jun
2 wk after
Sunflower
Helianthus annuus
10 – 17 May
26 May
3-4 wk
7 Jun
16 Jun
3 wk after
12 Jun
4 wk after
China aster
Callistephus chinensis
12 – 26 Apr
15 May
6-8 wk
7 Jun
26 Jun
3 wk after
30 Jun
6 wk after
Annual phlox
Phlox drummondii
3 – 17 Apr
7 May
6-8 wk
29 May
18 Jun
2 wk after
30 Jun
6 wk after
Hollyhock
Alcea rosea
23 Mar – 6 Apr
6-8 wk
18 May
0 wk
31 May
2 wk after
Alpine delphinium
Delphinium elatum
23 Feb – 23 Mar
14 Apr
8-12 wk
18 May
9 Jun
0 wk
12 Jun
4 wk after
African marigold
Tagetes erecta
12 – 26 Apr
7 May
6-8 wk
7 Jun
18 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
29 Mar – 12 Apr
5 May
6-8 wk
24 May
16 Jun
1 wk after
30 Jun
6 wk after
Wood sage
Salvia nemorosa
9 – 23 Mar
4 Apr
8-10 wk
18 May
30 May
0 wk
12 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
29 Mar – 26 Apr
27 Apr
6-10 wk
7 Jun
8 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
18 May
8 Jul
0 wk
19 May
28 Jun
0 wk
Painted tongue
Salpiglossis sinuata
29 Mar – 12 Apr
14 Apr
8-10 wk
7 Jun
9 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
23 Mar – 6 Apr
30 Apr
6-8 wk
18 May
11 Jun
0 wk
31 May
1 Jun
2 wk after