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Method
Rel. frost
Last spring frost (0°C) 6 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 103 days 6 Jun – 17 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)
18 Apr – 2 May
13 Jun
5-7 wk
6 Jun
18 Jul
0 wk
7 Jun
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
25 Apr – 9 May
25 Jun
4-6 wk
6 Jun
23 Jul
0 wk
7 Jun
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
25 Mar – 22 Apr
2 Apr
8-12 wk
17 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Apr – 2 May
8 Jun
5-7 wk
6 Jun
13 Jul
0 wk
6 Jun
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
29 May – 5 Jun
3-4 wk
26 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
5 Jun
4-5 wk
26 Jun
3 Jul
3 wk after
1 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 Jun
3-4 wk
17 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
14 Mar – 11 Apr
29 Mar
8-12 wk
6 Jun
0 wk
12 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 Jun
9 Jun
0 wk
7 Jun
0 wk
Maize
Zea mays
Fleece
20 – 27 May
3-4 wk
17 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
2 Jul
3-4 wk
12 Jun
23 Jul
1 wk after
19 Jun
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 Jun
3 Jul
0 wk
6 Jun
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Apr – 2 May
8 Jun
5-7 wk
6 Jun
13 Jul
0 wk
6 Jun
3 Jul
0 wk
Potato
Solanum tuberosum
5 – 19 May
21 May
4-6 wk
16 Jun
18 Jun
1 wk after
16 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Apr – 2 May
18 Jun
5-7 wk
6 Jun
23 Jul
0 wk
7 Jun
13 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
29 May – 5 Jun
19 Jun
3-4 wk
26 Jun
10 Jul
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 May
2 Jun
3-4 wk
12 Jun
23 Jun
1 wk after
19 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Apr – 9 May
20 Jun
4-6 wk
6 Jun
18 Jul
0 wk
Lettuce
Lactuca sativa
9 – 16 May
7 Jul
3-4 wk
6 Jun
28 Jul
0 wk
7 Jun
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Apr – 9 May
20 Jun
4-6 wk
6 Jun
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
9 – 23 May
30 May
2-4 wk
6 Jun
13 Jun
0 wk
6 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 Jun
9 Jun
0 wk
7 Jun
0 wk
Spinach
Spinacia oleracea
9 – 16 May
22 Jul
3-4 wk
6 Jun
12 Aug
0 wk
3 Jun
2 Aug
0 wk
Sweet potato
Ipomoea batatas
1 – 15 Jul
4-6 wk
12 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
22 Apr – 6 May
26 Apr
6-8 wk
17 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
29 May – 12 Jun
3 Jun
2-4 wk
26 Jun
3 wk after
19 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Apr – 9 May
20 Jun
4-6 wk
6 Jun
18 Jul
0 wk
Garden pea
Pisum sativum
9 – 16 May
22 Jun
3-4 wk
6 Jun
13 Jul
0 wk
7 Jun
3 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
Fleece
15 – 29 May
28 May
4-6 wk
26 Jun
3 wk after
Lemon balm
Melissa officinalis
28 Mar – 11 Apr
18 May
8-10 wk
6 Jun
13 Jul
0 wk
1 Jul
3 Jul
4 wk after
Dill
Anethum graveolens
7 Jun
23 Jul
0 wk
Wild chives
Allium schoenoprasum
11 – 25 Apr
1 Jun
6-8 wk
6 Jun
13 Jul
0 wk
7 Jun
3 Jul
0 wk
Spearmint
Mentha spicata
14 Mar – 11 Apr
18 May
8-12 wk
6 Jun
13 Jul
0 wk
1 Jul
3 Jul
4 wk after
Coriander
Coriandrum sativum
6 Jun
12 Aug
0 wk
19 Jun
2 Aug
2 wk after
Garden sage
Salvia officinalis
3 – 17 Apr
3 May
8-10 wk
12 Jun
28 Jun
1 wk after
Common thyme
Thymus vulgaris
28 Mar – 11 Apr
8 May
8-10 wk
6 Jun
3 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Apr
22 May
6-8 wk
6 Jun
3 Jul
0 wk
1 Jul
4 wk after
Parsley
Petroselinum crispum
11 – 25 Apr
22 May
6-8 wk
6 Jun
3 Jul
0 wk
7 Jun
23 Jun
0 wk
Rosemary
Salvia rosmarinus
6 Mar – 3 Apr
4 Apr
10-14 wk
12 Jun
13 Jun
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
Fleece
29 May – 5 Jun
4 Jun
3-4 wk
26 Jun
3 wk after
Cornflower
Centaurea cyanus
6 Jun
13 Jul
0 wk
7 Jun
3 Jul
0 wk
Statice
Limonium sinuatum
17 Apr – 1 May
23 Apr
8-10 wk
26 Jun
3 wk after
Sweet William
Dianthus barbatus
11 – 25 Apr
6-8 wk
6 Jun
0 wk
16 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
1 – 15 May
7 May
6-8 wk
26 Jun
3 wk after
12 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
26 Apr – 10 May
15 May
6-8 wk
21 Jun
26 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
6 May – 3 Jun
29 May
4-8 wk
1 Jul
4 wk after
1 Jul
4 wk after
Foxglove
Digitalis purpurea
28 Mar – 11 Apr
8-10 wk
6 Jun
0 wk
19 Jun
2 wk after
Busy lizzie
Impatiens walleriana
17 Apr – 15 May
15 Jun
8-12 wk
10 Jul
10 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 May
17 May
6-8 wk
26 Jun
28 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
3 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Apr
18 Apr
8-10 wk
12 Jun
13 Jun
1 wk after
Love in a mist
Nigella damascena
6 Jun
28 Jun
0 wk
7 Jun
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
1 – 15 May
6-8 wk
26 Jun
3 wk after
12 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
20 Mar – 17 Apr
18 Apr
8-12 wk
12 Jun
13 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
25 Mar – 22 Apr
8-12 wk
17 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
3 Apr – 1 May
20 Apr
8-12 wk
26 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
1 – 15 May
4 May
6-8 wk
26 Jun
3 wk after
Corn poppy
Papaver rhoeas
6 Jun
13 Jul
0 wk
7 Jun
3 Jul
0 wk
Snapdragon
Antirrhinum majus
14 Mar – 11 Apr
8 May
8-12 wk
6 Jun
3 Jul
0 wk
16 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
17 Apr – 1 May
18 May
8-10 wk
26 Jun
13 Jul
3 wk after
Sweet pea
Lathyrus odoratus
11 Apr – 2 May
29 May
5-8 wk
6 Jun
3 Jul
0 wk
Stock
Matthiola incana
11 – 25 Apr
1 Jun
6-8 wk
6 Jun
13 Jul
0 wk
19 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
0 wk
19 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
15 – 29 May
4-6 wk
26 Jun
3 wk after
Garden pansy
Viola × wittrockiana
28 Mar – 11 Apr
18 May
8-10 wk
6 Jun
13 Jul
0 wk
16 Jun
3 Jul
1 wk after
Petunia
Petunia
3 Apr – 1 May
23 Apr
8-12 wk
26 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
17 Apr – 1 May
2 May
6-8 wk
12 Jun
13 Jun
1 wk after
19 Jul
6 wk after
Common zinnia
Zinnia elegans
15 – 29 May
28 May
4-6 wk
26 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
22 May – 5 Jun
4 Jun
3-5 wk
26 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 May
29 May
4-6 wk
26 Jun
26 Jun
3 wk after
19 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
17 Apr – 15 May
20 May
8-12 wk
10 Jul
15 Jul
5 wk after
Bee balm
Monarda didyma
14 Mar – 11 Apr
18 Apr
8-12 wk
6 Jun
13 Jun
0 wk
1 Jul
4 wk after
Yarrow
Achillea millefolium
11 – 25 Apr
6-8 wk
6 Jun
0 wk
19 Jun
2 wk after
Safflower
Carthamus tinctorius
6 Jun
13 Jun
0 wk
7 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Apr
22 May
6-8 wk
6 Jun
3 Jul
0 wk
21 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
25 Apr – 9 May
5 Jun
4-6 wk
6 Jun
3 Jul
0 wk
19 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
3 – 17 Apr
10-12 wk
26 Jun
3 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
12 Jun
3-4 wk
26 Jun
3 Jul
3 wk after
1 Jul
4 wk after
China aster
Callistephus chinensis
1 – 15 May
1 Jun
6-8 wk
26 Jun
13 Jul
3 wk after
19 Jul
6 wk after
Annual phlox
Phlox drummondii
22 Apr – 6 May
17 May
6-8 wk
17 Jun
28 Jun
2 wk after
19 Jul
6 wk after
Hollyhock
Alcea rosea
11 – 25 Apr
6-8 wk
6 Jun
0 wk
19 Jun
2 wk after
Alpine delphinium
Delphinium elatum
14 Mar – 11 Apr
18 Apr
8-12 wk
6 Jun
13 Jun
0 wk
1 Jul
4 wk after
African marigold
Tagetes erecta
1 – 15 May
17 May
6-8 wk
26 Jun
28 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
22 May
6-8 wk
12 Jun
3 Jul
1 wk after
19 Jul
6 wk after
Wood sage
Salvia nemorosa
28 Mar – 11 Apr
8 Apr
8-10 wk
6 Jun
0 wk
1 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
17 Apr – 15 May
14 May
6-10 wk
26 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
6 Jun
13 Jul
0 wk
7 Jun
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
17 Apr – 1 May
29 Apr
8-10 wk
26 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
0 wk
19 Jun
2 wk after