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-1.9°
Last 24h: Slight frost recorded tonight at 04:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 25 May Frost 3 of 4 years · 20 years of data
Frost-free season 96 days 25 May – 29 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)
6 – 20 Apr
11 Jun
5-7 wk
25 May
16 Jul
0 wk
26 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
23 Jun
4-6 wk
25 May
21 Jul
0 wk
26 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
13 Mar – 10 Apr
8-12 wk
5 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
6 Jun
5-7 wk
25 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
8 – 15 May
23 May
3-4 wk
5 Jun
13 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
24 May
4-5 wk
14 Jun
21 Jun
3 wk after
19 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
2 – 30 Mar
23 Mar
8-12 wk
25 May
0 wk
25 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
0 wk
26 May
0 wk
Maize
Zea mays
Greenhouse
1 – 8 May
13 May
3-4 wk
29 May
3 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
20 Jun
3-4 wk
31 May
11 Jul
1 wk after
7 Jun
1 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
26 Jun
0 wk
25 May
16 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
6 Jun
5-7 wk
25 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Potato
Solanum tuberosum
23 Apr – 7 May
28 Apr
4-6 wk
4 Jun
1 wk after
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
11 Jun
5-7 wk
25 May
16 Jul
0 wk
26 May
6 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
28 May
3-4 wk
14 Jun
18 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
27 Apr – 4 May
16 May
3-4 wk
25 May
6 Jun
0 wk
31 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
30 Jun
3-4 wk
25 May
21 Jul
0 wk
26 May
11 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
11 May
2-4 wk
25 May
25 May
0 wk
25 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
0 wk
26 May
0 wk
Spinach
Spinacia oleracea
27 Apr – 4 May
20 Jul
3-4 wk
25 May
10 Aug
0 wk
22 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
22 Apr
6-8 wk
29 May
3 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
8 – 22 May
30 May
2-4 wk
5 Jun
13 Jun
2 wk after
19 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
18 Jun
4-6 wk
25 May
16 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
15 Jun
3-4 wk
25 May
6 Jul
0 wk
26 May
26 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
Greenhouse
24 Apr – 8 May
21 May
4-6 wk
5 Jun
18 Jun
2 wk after
Lemon balm
Melissa officinalis
16 – 30 Mar
11 May
8-10 wk
25 May
6 Jul
0 wk
19 Jun
26 Jun
4 wk after
Dill
Anethum graveolens
26 May
11 Jul
0 wk
Wild chives
Allium schoenoprasum
30 Mar – 13 Apr
30 May
6-8 wk
25 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Spearmint
Mentha spicata
2 – 30 Mar
16 May
8-12 wk
25 May
11 Jul
0 wk
19 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
25 May
31 Jul
0 wk
7 Jun
21 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
1 May
8-10 wk
31 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
16 – 30 Mar
6 May
8-10 wk
25 May
1 Jul
0 wk
Oregano
Origanum vulgare
30 Mar – 13 Apr
20 May
6-8 wk
25 May
1 Jul
0 wk
19 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
30 Mar – 13 Apr
20 May
6-8 wk
25 May
1 Jul
0 wk
26 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
16 Feb – 16 Mar
23 Mar
10-14 wk
25 May
1 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
Greenhouse
8 – 15 May
28 May
3-4 wk
5 Jun
18 Jun
2 wk after
Cornflower
Centaurea cyanus
25 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
27 Mar – 10 Apr
16 Apr
8-10 wk
5 Jun
11 Jun
2 wk after
Sweet William
Dianthus barbatus
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
10 – 24 Apr
30 Apr
6-8 wk
5 Jun
11 Jun
2 wk after
14 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
27 Apr
6-8 wk
9 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
12 Apr – 10 May
20 May
4-8 wk
7 Jun
17 Jun
2 wk after
7 Jun
7 Jun
2 wk after
Foxglove
Digitalis purpurea
16 – 30 Mar
8-10 wk
25 May
0 wk
7 Jun
2 wk after
Busy lizzie
Impatiens walleriana
5 Apr – 3 May
24 May
8-12 wk
28 Jun
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
10 – 24 Apr
10 May
6-8 wk
5 Jun
21 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
3 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
6 Apr
8-10 wk
31 May
1 Jun
1 wk after
Love in a mist
Nigella damascena
25 May
21 Jun
0 wk
26 May
11 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
10 – 24 Apr
20 Apr
6-8 wk
5 Jun
2 wk after
14 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
6 Apr
8-12 wk
31 May
1 Jun
1 wk after
Cardoon
Cynara cardunculus
Season too short
6 Mar – 3 Apr
17 Mar
8-12 wk
29 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
13 Mar – 10 Apr
13 Apr
8-12 wk
5 Jun
8 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
10 – 24 Apr
27 Apr
6-8 wk
5 Jun
8 Jun
2 wk after
Corn poppy
Papaver rhoeas
25 May
6 Jul
0 wk
26 May
26 Jun
0 wk
Snapdragon
Antirrhinum majus
2 – 30 Mar
1 May
8-12 wk
25 May
26 Jun
0 wk
4 Jun
16 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
26 Apr
8-10 wk
14 Jun
21 Jun
3 wk after
Sweet pea
Lathyrus odoratus
30 Mar – 20 Apr
27 May
5-8 wk
25 May
1 Jul
0 wk
Stock
Matthiola incana
30 Mar – 13 Apr
25 May
6-8 wk
25 May
6 Jul
0 wk
7 Jun
26 Jun
2 wk after
Wormwood
Artemisia absinthium
30 Mar – 13 Apr
30 Apr
6-8 wk
25 May
11 Jun
0 wk
7 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
24 Apr – 8 May
6 May
4-6 wk
5 Jun
2 wk after
Garden pansy
Viola × wittrockiana
16 – 30 Mar
16 May
8-10 wk
25 May
11 Jul
0 wk
4 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
13 Mar – 10 Apr
16 Apr
8-12 wk
5 Jun
11 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
20 Apr
6-8 wk
31 May
1 Jun
1 wk after
7 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
24 Apr – 8 May
21 May
4-6 wk
5 Jun
18 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
1 – 15 May
28 May
3-5 wk
5 Jun
18 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
24 Apr – 8 May
20 May
4-6 wk
5 Jun
17 Jun
2 wk after
19 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
13 May
8-12 wk
14 Jun
8 Jul
3 wk after
Bee balm
Monarda didyma
2 – 30 Mar
11 Apr
8-12 wk
25 May
6 Jun
0 wk
19 Jun
4 wk after
Yarrow
Achillea millefolium
30 Mar – 13 Apr
31 Mar
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Safflower
Carthamus tinctorius
25 May
11 Jun
0 wk
26 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
30 Mar – 13 Apr
20 May
6-8 wk
25 May
1 Jul
0 wk
9 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
29 May
4-6 wk
25 May
26 Jun
0 wk
7 Jun
16 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Mar
19 Mar
10-12 wk
5 Jun
2 wk after
Sunflower
Helianthus annuus
Fleece
8 – 15 May
31 May
3-4 wk
5 Jun
21 Jun
2 wk after
7 Jun
11 Jun
2 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
5 May
6-8 wk
14 Jun
16 Jun
3 wk after
7 Jul
6 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
23 Apr
6-8 wk
5 Jun
2 wk after
7 Jul
6 wk after
Hollyhock
Alcea rosea
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Alpine delphinium
Delphinium elatum
2 – 30 Mar
11 Apr
8-12 wk
25 May
6 Jun
0 wk
19 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
10 – 24 Apr
10 May
6-8 wk
5 Jun
21 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
25 Apr
6-8 wk
31 May
6 Jun
1 wk after
7 Jul
6 wk after
Wood sage
Salvia nemorosa
16 – 30 Mar
1 Apr
8-10 wk
25 May
27 May
0 wk
19 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
27 Mar – 24 Apr
7 May
6-10 wk
5 Jun
18 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
25 May
1 Jul
0 wk
26 May
21 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
27 Mar – 10 Apr
26 Apr
8-10 wk
5 Jun
21 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
30 Mar – 13 Apr
30 Apr
6-8 wk
25 May
11 Jun
0 wk
7 Jun
2 wk after