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-1.7°
Last 24h: Slight frost recorded tonight at 03:00. Inspect for frost damage
Method
Rel. frost
Last spring frost (0°C) 16 May Frost 9 of 10 years · 20 years of data
Frost-free season 103 days 16 May – 27 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)
28 Mar – 11 Apr
12 Jun
5-7 wk
16 May
17 Jul
0 wk
17 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
4 – 18 Apr
24 Jun
4-6 wk
16 May
22 Jul
0 wk
17 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
28 Mar – 11 Apr
7 Jun
5-7 wk
16 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
29 Apr – 6 May
3-4 wk
27 May
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
1 – 8 May
22 May
4-5 wk
5 Jun
19 Jun
3 wk after
10 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
29 May – 5 Jun
3-4 wk
26 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
21 Feb – 21 Mar
15 Mar
8-12 wk
16 May
0 wk
29 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
17 May
30 May
0 wk
17 May
20 May
0 wk
Maize
Zea mays
Season too short
22 – 29 Apr
3-4 wk
20 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
24 Apr – 1 May
18 Jun
3-4 wk
22 May
9 Jul
1 wk after
29 May
29 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
16 May
25 Jun
0 wk
16 May
15 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
28 Mar – 11 Apr
7 Jun
5-7 wk
16 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Potato
Solanum tuberosum
14 – 28 Apr
12 May
4-6 wk
26 May
9 Jun
1 wk after
26 May
30 May
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
28 Mar – 11 Apr
10 Jun
5-7 wk
16 May
15 Jul
0 wk
17 May
5 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
29 Apr – 6 May
3-4 wk
27 May
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
24 Apr – 1 May
18 May
3-4 wk
22 May
8 Jun
1 wk after
29 May
29 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
4 – 18 Apr
19 Jun
4-6 wk
16 May
17 Jul
0 wk
Lettuce
Lactuca sativa
18 – 25 Apr
29 Jun
3-4 wk
16 May
20 Jul
0 wk
17 May
10 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Apr
19 Jun
4-6 wk
16 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
18 Apr – 2 May
18 May
2-4 wk
16 May
1 Jun
0 wk
16 May
22 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
17 May
30 May
0 wk
17 May
20 May
0 wk
Spinach
Spinacia oleracea
18 – 25 Apr
21 Jul
3-4 wk
16 May
11 Aug
0 wk
13 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
10 – 24 Jun
4-6 wk
22 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
25 Mar – 8 Apr
6-8 wk
20 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
22 Apr – 6 May
2-4 wk
20 May
1 wk after
29 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
4 – 18 Apr
19 Jun
4-6 wk
16 May
17 Jul
0 wk
Garden pea
Pisum sativum
18 – 25 Apr
14 Jun
3-4 wk
16 May
5 Jul
0 wk
17 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
Season too short
15 – 29 Apr
4-6 wk
27 May
2 wk after
Lemon balm
Melissa officinalis
7 – 21 Mar
10 May
8-10 wk
16 May
5 Jul
0 wk
10 Jun
25 Jun
4 wk after
Dill
Anethum graveolens
17 May
9 Jul
0 wk
Wild chives
Allium schoenoprasum
21 Mar – 4 Apr
31 May
6-8 wk
16 May
12 Jul
0 wk
17 May
2 Jul
0 wk
Spearmint
Mentha spicata
21 Feb – 21 Mar
17 May
8-12 wk
16 May
12 Jul
0 wk
10 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
16 May
29 Jul
0 wk
29 May
19 Jul
2 wk after
Garden sage
Salvia officinalis
13 – 27 Mar
2 May
8-10 wk
22 May
27 Jun
1 wk after
Common thyme
Thymus vulgaris
7 – 21 Mar
7 May
8-10 wk
16 May
2 Jul
0 wk
Oregano
Origanum vulgare
21 Mar – 4 Apr
21 May
6-8 wk
16 May
2 Jul
0 wk
10 Jun
22 Jun
4 wk after
Parsley
Petroselinum crispum
21 Mar – 4 Apr
21 May
6-8 wk
16 May
2 Jul
0 wk
17 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
13 Feb – 13 Mar
14 Mar
10-14 wk
22 May
23 May
1 wk after

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
29 Apr – 6 May
3-4 wk
27 May
2 wk after
Cornflower
Centaurea cyanus
16 May
12 Jul
0 wk
17 May
2 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
11 – 25 Mar
21 Mar
8-10 wk
20 May
1 wk after
Sweet William
Dianthus barbatus
21 Mar – 4 Apr
6-8 wk
16 May
0 wk
26 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
25 Mar – 8 Apr
4 Apr
6-8 wk
20 May
1 wk after
17 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Greenhouse
21 Mar – 4 Apr
9 Apr
6-8 wk
16 May
21 May
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
3 Apr – 1 May
16 Apr
4-8 wk
29 May
2 wk after
29 May
2 wk after
Foxglove
Digitalis purpurea
7 – 21 Mar
8-10 wk
16 May
0 wk
29 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
13 Mar – 10 Apr
12 Apr
8-12 wk
5 Jun
7 Jun
3 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
25 Mar – 8 Apr
14 Apr
6-8 wk
20 May
26 May
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
24 Apr – 8 May
4-6 wk
5 Jun
3 wk after
Chinese lantern
Physalis alkekengi
13 – 27 Mar
4 Apr
8-10 wk
22 May
30 May
1 wk after
Love in a mist
Nigella damascena
16 May
20 Jun
0 wk
17 May
10 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
25 Mar – 8 Apr
25 Mar
6-8 wk
20 May
1 wk after
17 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
27 Feb – 27 Mar
4 Apr
8-12 wk
22 May
30 May
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
25 Feb – 25 Mar
18 Mar
8-12 wk
20 May
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
4 Mar – 1 Apr
8-12 wk
27 May
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
1 – 15 Apr
6-8 wk
27 May
2 wk after
Corn poppy
Papaver rhoeas
16 May
5 Jul
0 wk
17 May
25 Jun
0 wk
Snapdragon
Antirrhinum majus
21 Feb – 21 Mar
30 Apr
8-12 wk
16 May
25 Jun
0 wk
26 May
15 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
18 Mar – 1 Apr
31 Mar
8-10 wk
27 May
2 wk after
Sweet pea
Lathyrus odoratus
21 Mar – 11 Apr
28 May
5-8 wk
16 May
2 Jul
0 wk
Stock
Matthiola incana
21 Mar – 4 Apr
24 May
6-8 wk
16 May
5 Jul
0 wk
29 May
25 Jun
2 wk after
Wormwood
Artemisia absinthium
21 Mar – 4 Apr
1 May
6-8 wk
16 May
12 Jun
0 wk
29 May
2 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
15 – 29 Apr
4-6 wk
27 May
2 wk after
Garden pansy
Viola × wittrockiana
7 – 21 Mar
17 May
8-10 wk
16 May
12 Jul
0 wk
26 May
2 Jul
1 wk after
Petunia
Petunia
Greenhouse
25 Feb – 25 Mar
21 Mar
8-12 wk
20 May
1 wk after
Sweet Scabious
Scabiosa atropurpurea
27 Mar – 10 Apr
18 Apr
6-8 wk
22 May
30 May
1 wk after
28 Jun
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
8 – 22 Apr
26 Apr
4-6 wk
20 May
24 May
1 wk after
Common morning glory
Ipomoea purpurea
Season too short
22 Apr – 6 May
3-5 wk
27 May
2 wk after
Garden cosmos
Cosmos bipinnatus
Greenhouse
8 – 22 Apr
23 Apr
4-6 wk
20 May
21 May
1 wk after
29 May
2 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
13 Mar – 10 Apr
17 Mar
8-12 wk
5 Jun
3 wk after
Bee balm
Monarda didyma
21 Feb – 21 Mar
10 Apr
8-12 wk
16 May
5 Jun
0 wk
10 Jun
4 wk after
Yarrow
Achillea millefolium
21 Mar – 4 Apr
1 Apr
6-8 wk
16 May
0 wk
29 May
2 wk after
Safflower
Carthamus tinctorius
16 May
12 Jun
0 wk
17 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
21 Mar – 4 Apr
21 May
6-8 wk
16 May
2 Jul
0 wk
30 Apr
22 Jun
2 wk before
Bishop's flower
Ammi majus
4 – 18 Apr
28 May
4-6 wk
16 May
25 Jun
0 wk
29 May
15 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
4 – 18 Mar
10-12 wk
27 May
2 wk after
Sunflower
Helianthus annuus
8 – 15 May
22 May
3-4 wk
5 Jun
12 Jun
3 wk after
10 Jun
4 wk after
China aster
Callistephus chinensis
10 – 24 Apr
11 May
6-8 wk
5 Jun
22 Jun
3 wk after
28 Jun
6 wk after
Annual phlox
Phlox drummondii
Fleece
25 Mar – 8 Apr
3 Apr
6-8 wk
20 May
1 wk after
10 Jun
4 wk after
Hollyhock
Alcea rosea
21 Mar – 4 Apr
6-8 wk
16 May
0 wk
29 May
2 wk after
Alpine delphinium
Delphinium elatum
21 Feb – 21 Mar
10 Apr
8-12 wk
16 May
5 Jun
0 wk
10 Jun
4 wk after
African marigold
Tagetes erecta
Greenhouse
25 Mar – 8 Apr
14 Apr
6-8 wk
20 May
26 May
1 wk after
Black-eyed Susan
Rudbeckia hirta
27 Mar – 10 Apr
1 May
6-8 wk
22 May
12 Jun
1 wk after
28 Jun
6 wk after
Wood sage
Salvia nemorosa
7 – 21 Mar
31 Mar
8-10 wk
16 May
26 May
0 wk
10 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
18 Mar – 15 Apr
6-10 wk
27 May
2 wk after
California goldenpoppy
Eschscholzia californica
16 May
1 Jul
0 wk
17 May
21 Jun
0 wk
Painted tongue
Salpiglossis sinuata
27 Mar – 10 Apr
8 Apr
8-10 wk
5 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
21 Mar – 4 Apr
1 May
6-8 wk
16 May
12 Jun
0 wk
29 May
2 Jun
2 wk after