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Method
Rel. frost
Last spring frost (0°C) 10 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 115 days 10 Jun – 3 Oct
Probability that frost is over

90% = 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)
22 Apr – 6 May
14 Jun
5-7 wk
10 Jun
19 Jul
0 wk
11 Jun
9 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
29 Apr – 13 May
26 Jun
4-6 wk
10 Jun
24 Jul
0 wk
11 Jun
14 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
22 Apr – 6 May
9 Jun
5-7 wk
10 Jun
14 Jul
0 wk
10 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
24 – 31 May
3-4 wk
21 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
9 – 16 Jun
4-5 wk
14 Jul
5 wk after
23 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
23 – 30 Jun
3-4 wk
21 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Mar – 15 Apr
30 Mar
8-12 wk
10 Jun
0 wk
23 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
11 Jun
14 Jun
0 wk
11 Jun
0 wk
Maize
Zea mays
Season too short
17 – 24 May
3-4 wk
14 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 May
3 Jul
3-4 wk
16 Jun
24 Jul
1 wk after
23 Jun
14 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 Jun
4 Jul
0 wk
10 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
22 Apr – 6 May
9 Jun
5-7 wk
10 Jun
14 Jul
0 wk
10 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
9 – 23 May
1 Jun
4-6 wk
20 Jun
29 Jun
1 wk after
20 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
22 Apr – 6 May
19 Jun
5-7 wk
10 Jun
24 Jul
0 wk
11 Jun
14 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
24 – 31 May
24 May
3-4 wk
21 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 May
16 Jun
3-4 wk
16 Jun
7 Jul
1 wk after
23 Jun
27 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
29 Apr – 13 May
21 Jun
4-6 wk
10 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 May
8 Jul
3-4 wk
10 Jun
29 Jul
0 wk
11 Jun
19 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
29 Apr – 13 May
21 Jun
4-6 wk
10 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 May
31 May
2-4 wk
10 Jun
14 Jun
0 wk
10 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
11 Jun
14 Jun
0 wk
11 Jun
0 wk
Spinach
Spinacia oleracea
13 – 20 May
23 Jul
3-4 wk
10 Jun
13 Aug
0 wk
7 Jun
3 Aug
0 wk
Sweet potato
Ipomoea batatas
5 – 19 Jul
4-6 wk
16 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
19 Apr – 3 May
6-8 wk
14 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
24 May – 7 Jun
2-4 wk
21 Jun
2 wk after
5 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
29 Apr – 13 May
21 Jun
4-6 wk
10 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 May
23 Jun
3-4 wk
10 Jun
14 Jul
0 wk
11 Jun
4 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
Greenhouse
10 – 24 May
4-6 wk
21 Jun
2 wk after
Lemon balm
Melissa officinalis
1 – 15 Apr
19 May
8-10 wk
10 Jun
14 Jul
0 wk
5 Jul
4 wk after
Dill
Anethum graveolens
11 Jun
24 Jul
0 wk
Wild chives
Allium schoenoprasum
15 – 29 Apr
2 Jun
6-8 wk
10 Jun
14 Jul
0 wk
11 Jun
4 Jul
0 wk
Spearmint
Mentha spicata
18 Mar – 15 Apr
19 May
8-12 wk
10 Jun
14 Jul
0 wk
5 Jul
4 wk after
Coriander
Coriandrum sativum
10 Jun
13 Aug
0 wk
23 Jun
3 Aug
2 wk after
Garden sage
Salvia officinalis
7 – 21 Apr
4 May
8-10 wk
16 Jun
29 Jun
1 wk after
Common thyme
Thymus vulgaris
1 – 15 Apr
9 May
8-10 wk
10 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
15 – 29 Apr
23 May
6-8 wk
10 Jun
4 Jul
0 wk
5 Jul
4 wk after
Parsley
Petroselinum crispum
15 – 29 Apr
23 May
6-8 wk
10 Jun
4 Jul
0 wk
11 Jun
24 Jun
0 wk
Rosemary
Salvia rosmarinus
10 Mar – 7 Apr
5 Apr
10-14 wk
16 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
Greenhouse
24 – 31 May
3-4 wk
21 Jun
2 wk after
Cornflower
Centaurea cyanus
10 Jun
14 Jul
0 wk
11 Jun
4 Jul
0 wk
Statice
Limonium sinuatum
Fleece
12 – 26 Apr
8-10 wk
21 Jun
2 wk after
Sweet William
Dianthus barbatus
15 – 29 Apr
6-8 wk
10 Jun
0 wk
20 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
26 Apr – 10 May
6-8 wk
21 Jun
2 wk after
30 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
21 Apr – 5 May
27 Apr
6-8 wk
16 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
28 Apr – 26 May
11 May
4-8 wk
23 Jun
2 wk after
23 Jun
2 wk after
Foxglove
Digitalis purpurea
1 – 15 Apr
8-10 wk
10 Jun
0 wk
23 Jun
2 wk after
Busy lizzie
Impatiens walleriana
21 Apr – 19 May
9 May
8-12 wk
14 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
26 Apr – 10 May
26 Apr
6-8 wk
21 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
19 May – 2 Jun
4-6 wk
30 Jun
3 wk after
Chinese lantern
Physalis alkekengi
7 – 21 Apr
19 Apr
8-10 wk
16 Jun
1 wk after
Love in a mist
Nigella damascena
10 Jun
29 Jun
0 wk
11 Jun
19 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
19 Apr – 3 May
21 Apr
6-8 wk
14 Jun
1 wk after
12 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
24 Mar – 21 Apr
19 Apr
8-12 wk
16 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
29 Mar – 26 Apr
8-12 wk
21 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
26 Apr – 10 May
6-8 wk
21 Jun
2 wk after
Corn poppy
Papaver rhoeas
10 Jun
14 Jul
0 wk
11 Jun
4 Jul
0 wk
Snapdragon
Antirrhinum majus
18 Mar – 15 Apr
9 May
8-12 wk
10 Jun
4 Jul
0 wk
20 Jun
24 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
21 Apr – 5 May
8-10 wk
30 Jun
3 wk after
Sweet pea
Lathyrus odoratus
15 Apr – 6 May
30 May
5-8 wk
10 Jun
4 Jul
0 wk
Stock
Matthiola incana
15 – 29 Apr
2 Jun
6-8 wk
10 Jun
14 Jul
0 wk
23 Jun
4 Jul
2 wk after
Wormwood
Artemisia absinthium
15 – 29 Apr
3 May
6-8 wk
10 Jun
14 Jun
0 wk
23 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
10 – 24 May
4-6 wk
21 Jun
2 wk after
Garden pansy
Viola × wittrockiana
1 – 15 Apr
19 May
8-10 wk
10 Jun
14 Jul
0 wk
20 Jun
4 Jul
1 wk after
Petunia
Petunia
Fleece
29 Mar – 26 Apr
2 Apr
8-12 wk
21 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
21 Apr – 5 May
3 May
6-8 wk
16 Jun
1 wk after
23 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
10 – 24 May
4-6 wk
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
17 – 31 May
3-5 wk
21 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
10 – 24 May
11 May
4-6 wk
21 Jun
2 wk after
5 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
21 Apr – 19 May
8-12 wk
14 Jul
5 wk after
Bee balm
Monarda didyma
18 Mar – 15 Apr
19 Apr
8-12 wk
10 Jun
14 Jun
0 wk
5 Jul
4 wk after
Yarrow
Achillea millefolium
15 – 29 Apr
6-8 wk
10 Jun
0 wk
23 Jun
2 wk after
Safflower
Carthamus tinctorius
10 Jun
14 Jun
0 wk
11 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
15 – 29 Apr
23 May
6-8 wk
10 Jun
4 Jul
0 wk
25 May
24 Jun
2 wk before
Bishop's flower
Ammi majus
29 Apr – 13 May
6 Jun
4-6 wk
10 Jun
4 Jul
0 wk
23 Jun
24 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
29 Mar – 12 Apr
10-12 wk
21 Jun
2 wk after
Sunflower
Helianthus annuus
2 – 9 Jun
13 Jun
3-4 wk
30 Jun
4 Jul
3 wk after
5 Jul
4 wk after
China aster
Callistephus chinensis
5 – 19 May
2 Jun
6-8 wk
30 Jun
14 Jul
3 wk after
23 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
19 Apr – 3 May
26 Apr
6-8 wk
14 Jun
1 wk after
5 Jul
4 wk after
Hollyhock
Alcea rosea
15 – 29 Apr
6-8 wk
10 Jun
0 wk
23 Jun
2 wk after
Alpine delphinium
Delphinium elatum
18 Mar – 15 Apr
19 Apr
8-12 wk
10 Jun
14 Jun
0 wk
5 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
26 Apr – 10 May
26 Apr
6-8 wk
21 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
21 Apr – 5 May
23 May
6-8 wk
16 Jun
4 Jul
1 wk after
23 Jul
6 wk after
Wood sage
Salvia nemorosa
1 – 15 Apr
9 Apr
8-10 wk
10 Jun
0 wk
5 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
12 Apr – 10 May
18 Apr
6-10 wk
21 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
10 Jun
14 Jul
0 wk
11 Jun
4 Jul
0 wk
Painted tongue
Salpiglossis sinuata
21 Apr – 5 May
8 May
8-10 wk
30 Jun
3 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
15 – 29 Apr
3 May
6-8 wk
10 Jun
14 Jun
0 wk
23 Jun
2 wk after