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-1.4°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 22 May Frost 3 of 4 years · 20 years of data
Frost-free season 92 days 22 May – 22 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)
3 – 17 Apr
11 Jun
5-7 wk
22 May
16 Jul
0 wk
23 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
10 – 24 Apr
23 Jun
4-6 wk
22 May
21 Jul
0 wk
23 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
3 – 17 Apr
6 Jun
5-7 wk
22 May
11 Jul
0 wk
22 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
5 – 12 May
23 May
3-4 wk
2 Jun
13 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
7 – 14 May
13 May
4-5 wk
11 Jun
3 wk after
16 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
27 Feb – 27 Mar
15 Mar
8-12 wk
22 May
0 wk
28 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
0 wk
23 May
0 wk
Maize
Zea mays
Greenhouse
28 Apr – 5 May
13 May
3-4 wk
26 May
3 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
9 Jun
3-4 wk
28 May
30 Jun
1 wk after
4 Jun
20 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
22 May
25 Jun
0 wk
22 May
15 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
3 – 17 Apr
6 Jun
5-7 wk
22 May
11 Jul
0 wk
22 May
1 Jul
0 wk
Potato
Solanum tuberosum
20 Apr – 4 May
28 Apr
4-6 wk
1 Jun
1 wk after
1 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
3 – 17 Apr
10 Jun
5-7 wk
22 May
15 Jul
0 wk
23 May
5 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
28 May
3-4 wk
11 Jun
18 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
1 May
3-4 wk
28 May
1 wk after
4 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
10 – 24 Apr
18 Jun
4-6 wk
22 May
16 Jul
0 wk
Lettuce
Lactuca sativa
24 Apr – 1 May
29 Jun
3-4 wk
22 May
20 Jul
0 wk
23 May
10 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
10 – 24 Apr
18 Jun
4-6 wk
22 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
24 Apr – 8 May
11 May
2-4 wk
22 May
25 May
0 wk
22 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 May
0 wk
23 May
0 wk
Spinach
Spinacia oleracea
24 Apr – 1 May
20 Jul
3-4 wk
22 May
10 Aug
0 wk
19 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
16 – 30 Jun
4-6 wk
28 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
31 Mar – 14 Apr
22 Apr
6-8 wk
26 May
3 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
5 – 19 May
30 May
2-4 wk
2 Jun
13 Jun
2 wk after
16 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
10 – 24 Apr
18 Jun
4-6 wk
22 May
16 Jul
0 wk
Garden pea
Pisum sativum
24 Apr – 1 May
14 Jun
3-4 wk
22 May
5 Jul
0 wk
23 May
25 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
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
2 wk after
Lemon balm
Melissa officinalis
13 – 27 Mar
10 May
8-10 wk
22 May
5 Jul
0 wk
16 Jun
25 Jun
4 wk after
Dill
Anethum graveolens
23 May
30 Jun
0 wk
Wild chives
Allium schoenoprasum
27 Mar – 10 Apr
30 May
6-8 wk
22 May
11 Jul
0 wk
23 May
1 Jul
0 wk
Spearmint
Mentha spicata
27 Feb – 27 Mar
16 May
8-12 wk
22 May
11 Jul
0 wk
16 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
22 May
20 Jul
0 wk
4 Jun
10 Jul
2 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
1 May
8-10 wk
28 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
13 – 27 Mar
6 May
8-10 wk
22 May
1 Jul
0 wk
Oregano
Origanum vulgare
27 Mar – 10 Apr
20 May
6-8 wk
22 May
1 Jul
0 wk
16 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
27 Mar – 10 Apr
20 May
6-8 wk
22 May
1 Jul
0 wk
23 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
13 Feb – 13 Mar
22 Mar
10-14 wk
22 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
Greenhouse
5 – 12 May
29 May
3-4 wk
2 Jun
19 Jun
2 wk after
Cornflower
Centaurea cyanus
22 May
11 Jul
0 wk
23 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
24 Mar – 7 Apr
17 Apr
8-10 wk
2 Jun
12 Jun
2 wk after
Sweet William
Dianthus barbatus
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
1 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
7 – 21 Apr
1 May
6-8 wk
2 Jun
12 Jun
2 wk after
11 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
28 Apr
6-8 wk
6 Jun
9 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
9 Apr – 7 May
24 May
4-8 wk
4 Jun
21 Jun
2 wk after
4 Jun
11 Jun
2 wk after
Foxglove
Digitalis purpurea
13 – 27 Mar
8-10 wk
22 May
0 wk
4 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
24 May
8-12 wk
25 Jun
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
7 – 21 Apr
11 May
6-8 wk
2 Jun
22 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
3 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
26 Mar
8-10 wk
28 May
1 wk after
Love in a mist
Nigella damascena
22 May
20 Jun
0 wk
23 May
10 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
7 – 21 Apr
21 Apr
6-8 wk
2 Jun
2 Jun
2 wk after
11 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
26 Mar
8-12 wk
28 May
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
3 – 31 Mar
17 Mar
8-12 wk
26 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
2 wk after
Corn poppy
Papaver rhoeas
22 May
5 Jul
0 wk
23 May
25 Jun
0 wk
Snapdragon
Antirrhinum majus
27 Feb – 27 Mar
30 Apr
8-12 wk
22 May
25 Jun
0 wk
1 Jun
15 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
27 Apr
8-10 wk
11 Jun
22 Jun
3 wk after
Sweet pea
Lathyrus odoratus
27 Mar – 17 Apr
27 May
5-8 wk
22 May
1 Jul
0 wk
Stock
Matthiola incana
27 Mar – 10 Apr
24 May
6-8 wk
22 May
5 Jul
0 wk
4 Jun
25 Jun
2 wk after
Wormwood
Artemisia absinthium
27 Mar – 10 Apr
30 Apr
6-8 wk
22 May
11 Jun
0 wk
4 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
21 Apr – 5 May
7 May
4-6 wk
2 Jun
4 Jun
2 wk after
Garden pansy
Viola × wittrockiana
13 – 27 Mar
16 May
8-10 wk
22 May
11 Jul
0 wk
1 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
10 Mar – 7 Apr
17 Apr
8-12 wk
2 Jun
12 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
9 Apr
6-8 wk
28 May
1 wk after
4 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
28 Apr – 12 May
29 May
3-5 wk
2 Jun
19 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
21 Apr – 5 May
24 May
4-6 wk
2 Jun
21 Jun
2 wk after
16 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
28 Apr
8-12 wk
25 Jun
5 wk after
Bee balm
Monarda didyma
27 Feb – 27 Mar
10 Apr
8-12 wk
22 May
5 Jun
0 wk
16 Jun
4 wk after
Yarrow
Achillea millefolium
27 Mar – 10 Apr
31 Mar
6-8 wk
22 May
0 wk
4 Jun
2 wk after
Safflower
Carthamus tinctorius
22 May
11 Jun
0 wk
23 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
27 Mar – 10 Apr
20 May
6-8 wk
22 May
1 Jul
0 wk
6 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
10 – 24 Apr
28 May
4-6 wk
22 May
25 Jun
0 wk
4 Jun
15 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
10 – 24 Mar
23 Mar
10-12 wk
2 Jun
2 wk after
Sunflower
Helianthus annuus
Fleece
5 – 12 May
30 May
3-4 wk
2 Jun
20 Jun
2 wk after
4 Jun
10 Jun
2 wk after
China aster
Callistephus chinensis
16 – 30 Apr
2 May
6-8 wk
11 Jun
13 Jun
3 wk after
4 Jul
6 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
24 Apr
6-8 wk
2 Jun
5 Jun
2 wk after
4 Jul
6 wk after
Hollyhock
Alcea rosea
27 Mar – 10 Apr
6-8 wk
22 May
0 wk
4 Jun
2 wk after
Alpine delphinium
Delphinium elatum
27 Feb – 27 Mar
10 Apr
8-12 wk
22 May
5 Jun
0 wk
16 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
7 – 21 Apr
11 May
6-8 wk
2 Jun
22 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
22 Apr
6-8 wk
28 May
3 Jun
1 wk after
4 Jul
6 wk after
Wood sage
Salvia nemorosa
13 – 27 Mar
31 Mar
8-10 wk
22 May
26 May
0 wk
16 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
24 Mar – 21 Apr
8 May
6-10 wk
2 Jun
19 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
22 May
30 Jun
0 wk
23 May
20 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
24 Mar – 7 Apr
15 Apr
8-10 wk
2 Jun
10 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
27 Mar – 10 Apr
30 Apr
6-8 wk
22 May
11 Jun
0 wk
4 Jun
2 wk after