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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 4 years · 20 years of data
Frost-free season 121 days 26 May – 24 Sep
Probability that frost is over

75% = 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)
7 – 21 Apr
11 Jun
5-7 wk
26 May
16 Jul
0 wk
27 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
27 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
13 Apr
8-12 wk
1 Jun
8 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
6 Jun
5-7 wk
26 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
11 – 18 May
7 Jun
3-4 wk
8 Jun
28 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
27 May
4-5 wk
27 Jun
5 wk after
8 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
3 – 31 Mar
27 Mar
8-12 wk
26 May
0 wk
1 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 May
30 May
0 wk
27 May
0 wk
Maize
Zea mays
Fleece
4 – 11 May
28 May
3-4 wk
1 Jun
18 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
30 Jun
3-4 wk
28 May
21 Jul
0 wk
8 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
1 Jul
0 wk
26 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
6 Jun
5-7 wk
26 May
11 Jul
0 wk
26 May
1 Jul
0 wk
Potato
Solanum tuberosum
24 Apr – 8 May
18 May
4-6 wk
5 Jun
15 Jun
1 wk after
5 Jun
5 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
16 Jun
5-7 wk
26 May
21 Jul
0 wk
27 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
30 May – 6 Jun
12 Jun
3-4 wk
27 Jun
3 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
26 May
3-4 wk
28 May
16 Jun
0 wk
8 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
18 Jun
4-6 wk
26 May
16 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
5 Jul
3-4 wk
26 May
26 Jul
0 wk
27 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
18 Jun
4-6 wk
26 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
21 May
2-4 wk
26 May
4 Jun
0 wk
26 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 May
30 May
0 wk
27 May
0 wk
Spinach
Spinacia oleracea
28 Apr – 5 May
20 Jul
3-4 wk
26 May
10 Aug
0 wk
23 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
20 Jun – 4 Jul
4-6 wk
1 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
6 – 20 Apr
7 May
6-8 wk
1 Jun
18 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
14 Jun
2-4 wk
8 Jun
28 Jun
2 wk after
8 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
18 Jun
4-6 wk
26 May
16 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
20 Jun
3-4 wk
26 May
11 Jul
0 wk
27 May
1 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
16 – 30 May
21 May
4-6 wk
27 Jun
5 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
16 May
8-10 wk
26 May
11 Jul
0 wk
20 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
27 May
21 Jul
0 wk
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
30 May
6-8 wk
26 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Spearmint
Mentha spicata
3 – 31 Mar
16 May
8-12 wk
26 May
11 Jul
0 wk
20 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
26 May
10 Aug
0 wk
8 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
1 May
8-10 wk
28 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
6 May
8-10 wk
26 May
1 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
20 May
6-8 wk
26 May
1 Jul
0 wk
20 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
20 May
6-8 wk
26 May
1 Jul
0 wk
27 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
2 Apr
10-14 wk
28 May
11 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
30 May – 6 Jun
3-4 wk
27 Jun
5 wk after
Cornflower
Centaurea cyanus
26 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Statice
Limonium sinuatum
30 Mar – 13 Apr
22 Apr
8-10 wk
8 Jun
17 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
5 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
6 May
6-8 wk
8 Jun
17 Jun
2 wk after
1 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
11 May
6-8 wk
6 Jun
22 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
13 Apr – 11 May
3 Jun
4-8 wk
8 Jun
1 Jul
2 wk after
8 Jun
21 Jun
2 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
8 Jun
2 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
11 Jun
8-12 wk
27 Jun
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
16 May
6-8 wk
8 Jun
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
16 Apr
8-10 wk
28 May
11 Jun
0 wk
Love in a mist
Nigella damascena
26 May
26 Jun
0 wk
27 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
26 Apr
6-8 wk
8 Jun
2 wk after
1 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
16 Apr
8-12 wk
28 May
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
9 Mar – 6 Apr
17 Mar
8-12 wk
1 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Mar – 13 Apr
16 Apr
8-12 wk
8 Jun
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Apr
30 Apr
6-8 wk
8 Jun
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
3 – 31 Mar
6 May
8-12 wk
26 May
1 Jul
0 wk
5 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
2 May
8-10 wk
27 Jun
27 Jun
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
27 May
5-8 wk
26 May
1 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
30 May
6-8 wk
26 May
11 Jul
0 wk
8 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
30 Apr
6-8 wk
26 May
11 Jun
0 wk
8 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
9 May
4-6 wk
8 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
16 May
8-10 wk
26 May
11 Jul
0 wk
5 Jun
1 Jul
1 wk after
Petunia
Petunia
16 Mar – 13 Apr
22 Apr
8-12 wk
8 Jun
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
30 Apr
6-8 wk
28 May
11 Jun
0 wk
8 Jul
6 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
24 May
4-6 wk
8 Jun
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
23 May – 6 Jun
28 May
3-5 wk
27 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
25 May
4-6 wk
8 Jun
22 Jun
2 wk after
8 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
16 May
8-12 wk
27 Jun
11 Jul
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
16 Apr
8-12 wk
26 May
11 Jun
0 wk
20 Jun
4 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
31 Mar
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Safflower
Carthamus tinctorius
26 May
11 Jun
0 wk
27 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
20 May
6-8 wk
26 May
1 Jul
0 wk
10 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
3 Jun
4-6 wk
26 May
1 Jul
0 wk
8 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Mar
24 Mar
10-12 wk
8 Jun
2 wk after
Sunflower
Helianthus annuus
11 – 18 May
10 Jun
3-4 wk
8 Jun
1 Jul
2 wk after
20 Jun
21 Jun
4 wk after
China aster
Callistephus chinensis
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
2 wk after
8 Jul
6 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
16 May
6-8 wk
1 Jun
27 Jun
1 wk after
8 Jul
6 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
8 Jun
2 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
16 Apr
8-12 wk
26 May
11 Jun
0 wk
20 Jun
4 wk after
African marigold
Tagetes erecta
13 – 27 Apr
16 May
6-8 wk
8 Jun
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
20 May
6-8 wk
28 May
1 Jul
0 wk
8 Jul
6 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
6 Apr
8-10 wk
26 May
1 Jun
0 wk
20 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
18 Apr – 16 May
7 May
6-10 wk
27 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
26 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
29 Apr
8-10 wk
8 Jun
24 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
30 Apr
6-8 wk
26 May
11 Jun
0 wk
8 Jun
2 wk after