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Method
Rel. frost
Last spring frost (0°C) 20 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 78 days 20 Jun – 6 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)
2 – 16 May
15 Jun
5-7 wk
20 Jun
20 Jul
0 wk
24 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
9 – 23 May
27 Jun
4-6 wk
20 Jun
25 Jul
0 wk
24 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
3 Apr – 1 May
8-12 wk
26 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
2 – 16 May
10 Jun
5-7 wk
20 Jun
15 Jul
0 wk
20 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
5 – 12 Jun
3-4 wk
3 Jul
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
29 May – 5 Jun
2 Jun
4-5 wk
3 Jul
2 wk after
25 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
1 – 8 Jul
3-4 wk
29 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
28 Mar – 25 Apr
31 Mar
8-12 wk
20 Jun
0 wk
20 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
16 Jun
1 wk before
16 Jun
1 wk before
Maize
Zea mays
Greenhouse
23 – 30 May
31 May
3-4 wk
20 Jun
21 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 May – 1 Jun
29 Jun
3-4 wk
22 Jun
20 Jul
0 wk
11 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
20 Jun
5 Jul
0 wk
20 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
2 – 16 May
10 Jun
5-7 wk
20 Jun
15 Jul
0 wk
20 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
Fleece
13 – 27 May
17 May
4-6 wk
24 Jun
1 wk after
24 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
2 – 16 May
20 Jun
5-7 wk
20 Jun
25 Jul
0 wk
24 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
5 – 12 Jun
15 Jun
3-4 wk
3 Jul
6 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
23 – 30 May
3-4 wk
20 Jun
0 wk
30 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
9 – 23 May
22 Jun
4-6 wk
20 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
23 – 30 May
9 Jul
3-4 wk
20 Jun
30 Jul
0 wk
24 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
9 – 23 May
22 Jun
4-6 wk
20 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
23 May – 6 Jun
2-4 wk
20 Jun
0 wk
20 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
16 Jun
1 wk before
16 Jun
1 wk before
Spinach
Spinacia oleracea
23 – 30 May
24 Jul
3-4 wk
20 Jun
14 Aug
0 wk
16 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
22 Jul – 5 Aug
4-6 wk
2 Sep
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
25 Apr – 9 May
10 May
6-8 wk
20 Jun
21 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
5 – 19 Jun
2-4 wk
3 Jul
2 wk after
8 Aug
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
9 – 23 May
22 Jun
4-6 wk
20 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
23 – 30 May
24 Jun
3-4 wk
20 Jun
15 Jul
0 wk
24 Jun
5 Jul
1 wk after

Herbs

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