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-2.1°
Last 24h: Slight frost recorded last night at 04:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 13 May Frost 9 of 10 years · 20 years of data
Frost-free season 108 days 13 May – 29 Aug
Probability that frost is over

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