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-2.8°
Last 24h: Slight frost recorded tonight at 01:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 21 May Frost 3 of 4 years · 20 years of data
Frost-free season 87 days 21 May – 16 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)
2 – 16 Apr
11 Jun
5-7 wk
21 May
16 Jul
0 wk
22 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 Apr
23 Jun
4-6 wk
21 May
21 Jul
0 wk
22 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
9 Mar – 6 Apr
8-12 wk
1 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 Apr
6 Jun
5-7 wk
21 May
11 Jul
0 wk
21 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
4 – 11 May
23 May
3-4 wk
1 Jun
13 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
6 – 13 May
7 May
4-5 wk
10 Jun
3 wk after
15 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
3 – 10 Jun
3-4 wk
1 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
26 Feb – 26 Mar
17 Mar
8-12 wk
21 May
0 wk
27 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
22 May
0 wk
22 May
0 wk
Maize
Zea mays
Greenhouse
27 Apr – 4 May
13 May
3-4 wk
25 May
3 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
3 Jun
3-4 wk
27 May
24 Jun
1 wk after
3 Jun
14 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
21 May
22 Jun
0 wk
21 May
12 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
2 – 16 Apr
6 Jun
5-7 wk
21 May
11 Jul
0 wk
21 May
1 Jul
0 wk
Potato
Solanum tuberosum
19 Apr – 3 May
29 Apr
4-6 wk
31 May
1 wk after
31 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 Apr
7 Jun
5-7 wk
21 May
12 Jul
0 wk
22 May
2 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
13 – 20 May
28 May
3-4 wk
10 Jun
18 Jun
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
5 May
3-4 wk
27 May
1 wk after
3 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 Apr
18 Jun
4-6 wk
21 May
16 Jul
0 wk
Lettuce
Lactuca sativa
23 – 30 Apr
26 Jun
3-4 wk
21 May
17 Jul
0 wk
22 May
7 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
9 – 23 Apr
18 Jun
4-6 wk
21 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 Apr – 7 May
12 May
2-4 wk
21 May
26 May
0 wk
21 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
22 May
0 wk
22 May
0 wk
Spinach
Spinacia oleracea
23 – 30 Apr
19 Jul
3-4 wk
21 May
9 Aug
0 wk
18 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
15 – 29 Jun
4-6 wk
27 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
30 Mar – 13 Apr
22 Apr
6-8 wk
25 May
3 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
4 – 18 May
30 May
2-4 wk
1 Jun
13 Jun
2 wk after
15 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 Apr
18 Jun
4-6 wk
21 May
16 Jul
0 wk
Garden pea
Pisum sativum
23 – 30 Apr
11 Jun
3-4 wk
21 May
2 Jul
0 wk
22 May
22 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
20 Apr – 4 May
21 May
4-6 wk
1 Jun
18 Jun
2 wk after
Lemon balm
Melissa officinalis
12 – 26 Mar
7 May
8-10 wk
21 May
2 Jul
0 wk
15 Jun
22 Jun
4 wk after
Dill
Anethum graveolens
22 May
24 Jun
0 wk
Wild chives
Allium schoenoprasum
26 Mar – 9 Apr
30 May
6-8 wk
21 May
11 Jul
0 wk
22 May
1 Jul
0 wk
Spearmint
Mentha spicata
26 Feb – 26 Mar
16 May
8-12 wk
21 May
11 Jul
0 wk
15 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
21 May
14 Jul
0 wk
3 Jun
4 Jul
2 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
1 May
8-10 wk
27 May
26 Jun
1 wk after
Common thyme
Thymus vulgaris
12 – 26 Mar
6 May
8-10 wk
21 May
1 Jul
0 wk
Oregano
Origanum vulgare
26 Mar – 9 Apr
20 May
6-8 wk
21 May
1 Jul
0 wk
15 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
26 Mar – 9 Apr
20 May
6-8 wk
21 May
1 Jul
0 wk
22 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
12 Feb – 12 Mar
14 Mar
10-14 wk
21 May
23 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
4 – 11 May
28 May
3-4 wk
1 Jun
18 Jun
2 wk after
Cornflower
Centaurea cyanus
21 May
11 Jul
0 wk
22 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
23 Mar – 6 Apr
17 Apr
8-10 wk
1 Jun
12 Jun
2 wk after
Sweet William
Dianthus barbatus
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
31 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
6 – 20 Apr
1 May
6-8 wk
1 Jun
12 Jun
2 wk after
10 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Apr
27 Apr
6-8 wk
5 Jun
8 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
20 Apr – 18 May
11 May
4-8 wk
15 Jun
4 wk after
15 Jun
4 wk after
Foxglove
Digitalis purpurea
12 – 26 Mar
8-10 wk
21 May
0 wk
3 Jun
2 wk after
Busy lizzie
Impatiens walleriana
1 – 29 Apr
24 May
8-12 wk
24 Jun
19 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
29 Apr – 13 May
4-6 wk
10 Jun
3 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
20 Mar
8-10 wk
27 May
1 wk after
Love in a mist
Nigella damascena
21 May
17 Jun
0 wk
22 May
7 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
6 – 20 Apr
21 Apr
6-8 wk
1 Jun
2 Jun
2 wk after
10 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
20 Mar
8-12 wk
27 May
1 wk after
Cardoon
Cynara cardunculus
Season too short
2 – 30 Mar
16 Mar
8-12 wk
25 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
9 Mar – 6 Apr
13 Apr
8-12 wk
1 Jun
8 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
6 – 20 Apr
27 Apr
6-8 wk
1 Jun
8 Jun
2 wk after
Corn poppy
Papaver rhoeas
21 May
2 Jul
0 wk
22 May
22 Jun
0 wk
Snapdragon
Antirrhinum majus
26 Feb – 26 Mar
27 Apr
8-12 wk
21 May
22 Jun
0 wk
31 May
12 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
1 – 15 Apr
27 Apr
8-10 wk
10 Jun
22 Jun
3 wk after
Sweet pea
Lathyrus odoratus
26 Mar – 16 Apr
27 May
5-8 wk
21 May
1 Jul
0 wk
Stock
Matthiola incana
26 Mar – 9 Apr
21 May
6-8 wk
21 May
2 Jul
0 wk
3 Jun
22 Jun
2 wk after
Wormwood
Artemisia absinthium
26 Mar – 9 Apr
30 Apr
6-8 wk
21 May
11 Jun
0 wk
3 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
20 Apr – 4 May
6 May
4-6 wk
1 Jun
3 Jun
2 wk after
Garden pansy
Viola × wittrockiana
12 – 26 Mar
16 May
8-10 wk
21 May
11 Jul
0 wk
31 May
1 Jul
1 wk after
Petunia
Petunia
Fleece
9 Mar – 6 Apr
17 Apr
8-12 wk
1 Jun
12 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
3 Apr
6-8 wk
27 May
1 wk after
3 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
20 Apr – 4 May
21 May
4-6 wk
1 Jun
18 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
27 Apr – 11 May
28 May
3-5 wk
1 Jun
18 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
29 Apr – 13 May
11 May
4-6 wk
10 Jun
3 wk after
3 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
1 – 29 Apr
28 Apr
8-12 wk
24 Jun
5 wk after
Bee balm
Monarda didyma
26 Feb – 26 Mar
7 Apr
8-12 wk
21 May
2 Jun
0 wk
15 Jun
4 wk after
Yarrow
Achillea millefolium
26 Mar – 9 Apr
31 Mar
6-8 wk
21 May
0 wk
3 Jun
2 wk after
Safflower
Carthamus tinctorius
21 May
10 Jun
0 wk
22 May
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
26 Mar – 9 Apr
20 May
6-8 wk
21 May
1 Jul
0 wk
5 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
9 – 23 Apr
25 May
4-6 wk
21 May
22 Jun
0 wk
3 Jun
12 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
9 – 23 Mar
21 Mar
10-12 wk
1 Jun
2 wk after
Sunflower
Helianthus annuus
Fleece
4 – 11 May
22 May
3-4 wk
1 Jun
12 Jun
2 wk after
3 Jun
2 wk after
China aster
Callistephus chinensis
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
3 wk after
3 Jul
6 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
29 Apr
6-8 wk
1 Jun
10 Jun
2 wk after
3 Jul
6 wk after
Hollyhock
Alcea rosea
26 Mar – 9 Apr
6-8 wk
21 May
0 wk
3 Jun
2 wk after
Alpine delphinium
Delphinium elatum
26 Feb – 26 Mar
7 Apr
8-12 wk
21 May
2 Jun
0 wk
15 Jun
4 wk after
African marigold
Tagetes erecta
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
19 Apr
6-8 wk
27 May
31 May
1 wk after
3 Jul
6 wk after
Wood sage
Salvia nemorosa
12 – 26 Mar
28 Mar
8-10 wk
21 May
23 May
0 wk
15 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
23 Mar – 20 Apr
7 May
6-10 wk
1 Jun
18 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
21 May
22 Jun
0 wk
22 May
12 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
23 Mar – 6 Apr
9 Apr
8-10 wk
1 Jun
4 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
26 Mar – 9 Apr
30 Apr
6-8 wk
21 May
11 Jun
0 wk
3 Jun
2 wk after