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-1.9°
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 99 days 20 May – 27 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
15 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
Greenhouse
3 – 10 May
27 May
3-4 wk
31 May
17 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
5 – 12 May
18 May
4-5 wk
9 Jun
15 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
19 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
17 May
3-4 wk
24 May
7 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
14 Jun
3-4 wk
26 May
5 Jul
1 wk after
2 Jun
25 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 May
30 Jun
0 wk
20 May
20 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
5 May
4-6 wk
30 May
2 Jun
1 wk after
30 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
1 – 15 Apr
15 Jun
5-7 wk
20 May
20 Jul
0 wk
21 May
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
12 – 19 May
1 Jun
3-4 wk
9 Jun
22 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
4 Jul
3-4 wk
20 May
25 Jul
0 wk
21 May
15 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
13 May
2-4 wk
20 May
27 May
0 wk
20 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
20 Jul
3-4 wk
20 May
10 Aug
0 wk
17 May
31 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
26 Apr
6-8 wk
24 May
7 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
3 – 17 May
3 Jun
2-4 wk
31 May
17 Jun
2 wk after
14 Jun
4 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
19 Jun
3-4 wk
20 May
10 Jul
0 wk
21 May
30 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
10 May
4-6 wk
9 Jun
3 wk after
Lemon balm
Melissa officinalis
11 – 25 Mar
15 May
8-10 wk
20 May
10 Jul
0 wk
14 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
21 May
5 Jul
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
25 Jul
0 wk
2 Jun
15 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
25 Mar
10-14 wk
20 May
3 Jun
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
17 May
3-4 wk
9 Jun
3 wk after
Cornflower
Centaurea cyanus
20 May
11 Jul
0 wk
21 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
22 Mar – 5 Apr
19 Apr
8-10 wk
31 May
14 Jun
2 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
Fleece
5 – 19 Apr
3 May
6-8 wk
31 May
14 Jun
2 wk after
9 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
30 Apr
6-8 wk
4 Jun
11 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
19 Apr – 17 May
14 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
28 May
8-12 wk
23 Jun
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 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
17 – 31 Mar
31 Mar
8-10 wk
26 May
26 May
1 wk after
Love in a mist
Nigella damascena
20 May
25 Jun
0 wk
21 May
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
5 – 19 Apr
23 Apr
6-8 wk
31 May
4 Jun
2 wk after
9 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
31 Mar
8-12 wk
26 May
26 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
1 – 29 Mar
17 Mar
8-12 wk
24 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
8 Mar – 5 Apr
16 Apr
8-12 wk
31 May
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
5 – 19 Apr
30 Apr
6-8 wk
31 May
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
20 May
10 Jul
0 wk
21 May
30 Jun
0 wk
Snapdragon
Antirrhinum majus
25 Feb – 25 Mar
5 May
8-12 wk
20 May
30 Jun
0 wk
30 May
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
31 Mar – 14 Apr
29 Apr
8-10 wk
9 Jun
24 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
29 May
6-8 wk
20 May
10 Jul
0 wk
2 Jun
30 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
Greenhouse
19 Apr – 3 May
9 May
4-6 wk
31 May
6 Jun
2 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
Fleece
8 Mar – 5 Apr
19 Apr
8-12 wk
31 May
14 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
14 Apr
6-8 wk
26 May
26 May
1 wk after
2 Jul
6 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
10 May
4-6 wk
9 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
17 May
3-5 wk
9 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
14 May
4-6 wk
9 Jun
11 Jun
3 wk after
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
31 Mar – 28 Apr
2 May
8-12 wk
23 Jun
27 Jun
5 wk after
Bee balm
Monarda didyma
25 Feb – 25 Mar
15 Apr
8-12 wk
20 May
10 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
11 Jun
0 wk
21 May
1 Jun
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
2 Jun
4-6 wk
20 May
30 Jun
0 wk
2 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
8 – 22 Mar
25 Mar
10-12 wk
31 May
3 Jun
2 wk after
Sunflower
Helianthus annuus
Fleece
3 – 10 May
2 Jun
3-4 wk
31 May
23 Jun
2 wk after
2 Jun
13 Jun
2 wk after
China aster
Callistephus chinensis
14 – 28 Apr
1 May
6-8 wk
9 Jun
12 Jun
3 wk after
2 Jul
6 wk after
Annual phlox
Phlox drummondii
5 – 19 Apr
30 Apr
6-8 wk
31 May
11 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
15 Apr
8-12 wk
20 May
10 Jun
0 wk
14 Jun
4 wk after
African marigold
Tagetes erecta
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
21 Apr
6-8 wk
26 May
2 Jun
1 wk after
2 Jul
6 wk after
Wood sage
Salvia nemorosa
11 – 25 Mar
5 Apr
8-10 wk
20 May
31 May
0 wk
14 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
31 Mar – 28 Apr
26 Apr
6-10 wk
9 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
20 May
3 Jul
0 wk
21 May
23 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
22 Mar – 5 Apr
20 Apr
8-10 wk
31 May
15 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