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