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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 98 days 13 Jun – 19 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)
25 Apr – 9 May
14 Jun
5-7 wk
13 Jun
19 Jul
0 wk
17 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
26 Jun
4-6 wk
13 Jun
24 Jul
0 wk
17 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
9 Jun
5-7 wk
13 Jun
14 Jul
0 wk
13 Jun
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
22 – 29 May
3-4 wk
19 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
6 Jun
4-5 wk
26 Jun
4 Jul
2 wk after
18 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
24 Jun – 1 Jul
3-4 wk
22 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
21 Mar – 18 Apr
30 Mar
8-12 wk
13 Jun
0 wk
13 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
9 Jun
9 Jun
1 wk before
9 Jun
1 wk before
Maize
Zea mays
Season too short
16 – 23 May
3-4 wk
13 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
3 Jul
3-4 wk
15 Jun
24 Jul
0 wk
4 Jul
14 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
4 Jul
0 wk
13 Jun
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
9 Jun
5-7 wk
13 Jun
14 Jul
0 wk
13 Jun
4 Jul
0 wk
Potato
Solanum tuberosum
Fleece
6 – 20 May
20 May
4-6 wk
17 Jun
17 Jun
1 wk after
17 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
19 Jun
5-7 wk
13 Jun
24 Jul
0 wk
17 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
22 – 29 May
20 Jun
3-4 wk
19 Jun
11 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
16 – 23 May
22 May
3-4 wk
13 Jun
0 wk
23 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
8 Jul
3-4 wk
13 Jun
29 Jul
0 wk
17 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
16 – 30 May
20 May
2-4 wk
13 Jun
0 wk
13 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
9 Jun
9 Jun
1 wk before
9 Jun
1 wk before
Spinach
Spinacia oleracea
16 – 23 May
23 Jul
3-4 wk
13 Jun
13 Aug
0 wk
9 Jun
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
15 – 29 Jul
4-6 wk
26 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
22 May – 5 Jun
2-4 wk
19 Jun
1 wk after
18 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
21 Jun
4-6 wk
13 Jun
19 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
23 Jun
3-4 wk
13 Jun
14 Jul
0 wk
17 Jun
4 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
8 – 22 May
29 May
4-6 wk
19 Jun
26 Jun
1 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
19 May
8-10 wk
13 Jun
14 Jul
0 wk
18 Jul
5 wk after
Dill
Anethum graveolens
17 Jun
24 Jul
1 wk after
Wild chives
Allium schoenoprasum
18 Apr – 2 May
2 Jun
6-8 wk
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
21 Mar – 18 Apr
19 May
8-12 wk
13 Jun
14 Jul
0 wk
18 Jul
5 wk after
Coriander
Coriandrum sativum
13 Jun
13 Aug
0 wk
4 Jul
3 Aug
3 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
4 May
8-10 wk
15 Jun
29 Jun
0 wk
Common thyme
Thymus vulgaris
4 – 18 Apr
9 May
8-10 wk
13 Jun
4 Jul
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
18 Jul
5 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
17 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
1 Apr
10-14 wk
15 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
Greenhouse
22 – 29 May
5 Jun
3-4 wk
19 Jun
26 Jun
1 wk after
Cornflower
Centaurea cyanus
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
10 – 24 Apr
29 Apr
8-10 wk
19 Jun
24 Jun
1 wk after
Sweet William
Dianthus barbatus
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
29 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
24 Apr – 8 May
13 May
6-8 wk
19 Jun
24 Jun
1 wk after
11 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
29 Apr – 13 May
5 May
6-8 wk
24 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
28 Apr – 26 May
6 Jun
4-8 wk
23 Jun
4 Jul
1 wk after
23 Jun
24 Jun
1 wk after
Foxglove
Digitalis purpurea
4 – 18 Apr
8-10 wk
13 Jun
0 wk
4 Jul
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
3 Apr – 1 May
16 Jun
8-12 wk
26 Jun
11 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
24 Apr – 8 May
23 May
6-8 wk
19 Jun
4 Jul
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
2 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
19 Apr
8-10 wk
15 Jun
0 wk
Love in a mist
Nigella damascena
13 Jun
29 Jun
0 wk
17 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
24 Apr – 8 May
3 May
6-8 wk
19 Jun
1 wk after
11 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
19 Apr
8-12 wk
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
27 Mar – 24 Apr
21 Apr
8-12 wk
19 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
24 Apr – 8 May
5 May
6-8 wk
19 Jun
1 wk after
Corn poppy
Papaver rhoeas
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
9 May
8-12 wk
13 Jun
4 Jul
0 wk
29 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
17 Apr – 1 May
9 May
8-10 wk
26 Jun
4 Jul
2 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
30 May
5-8 wk
13 Jun
4 Jul
0 wk
Stock
Matthiola incana
18 Apr – 2 May
2 Jun
6-8 wk
13 Jun
14 Jul
0 wk
4 Jul
4 Jul
3 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
3 May
6-8 wk
13 Jun
14 Jun
0 wk
4 Jul
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
8 – 22 May
14 May
4-6 wk
19 Jun
1 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
19 May
8-10 wk
13 Jun
14 Jul
0 wk
29 Jun
4 Jul
2 wk after
Petunia
Petunia
Fleece
27 Mar – 24 Apr
29 Apr
8-12 wk
19 Jun
24 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
3 May
6-8 wk
15 Jun
0 wk
1 Aug
7 wk after
Common zinnia
Zinnia elegans
Fleece
8 – 22 May
29 May
4-6 wk
19 Jun
26 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
15 – 29 May
5 Jun
3-5 wk
19 Jun
26 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
8 – 22 May
3 Jun
4-6 wk
19 Jun
1 Jul
1 wk after
18 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
3 Apr – 1 May
21 May
8-12 wk
26 Jun
16 Jul
2 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
19 Apr
8-12 wk
13 Jun
14 Jun
0 wk
18 Jul
5 wk after
Yarrow
Achillea millefolium
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
4 Jul
3 wk after
Safflower
Carthamus tinctorius
13 Jun
14 Jun
0 wk
17 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
23 May
6-8 wk
13 Jun
4 Jul
0 wk
26 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
2 – 16 May
6 Jun
4-6 wk
13 Jun
4 Jul
0 wk
4 Jul
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
27 Mar – 10 Apr
2 Apr
10-12 wk
19 Jun
1 wk after
Sunflower
Helianthus annuus
29 May – 5 Jun
9 Jun
3-4 wk
26 Jun
30 Jun
2 wk after
18 Jul
5 wk after
China aster
Callistephus chinensis
1 – 15 May
29 May
6-8 wk
26 Jun
10 Jul
2 wk after
1 Aug
7 wk after
Annual phlox
Phlox drummondii
24 Apr – 8 May
5 May
6-8 wk
19 Jun
1 wk after
1 Aug
7 wk after
Hollyhock
Alcea rosea
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
4 Jul
3 wk after
Alpine delphinium
Delphinium elatum
21 Mar – 18 Apr
19 Apr
8-12 wk
13 Jun
14 Jun
0 wk
18 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
24 Apr – 8 May
23 May
6-8 wk
19 Jun
4 Jul
1 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
19 May
6-8 wk
15 Jun
30 Jun
0 wk
1 Aug
7 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
9 Apr
8-10 wk
13 Jun
0 wk
18 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
10 Apr – 8 May
15 May
6-10 wk
19 Jun
26 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
14 Jul
0 wk
17 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
10 – 24 Apr
9 May
8-10 wk
19 Jun
4 Jul
1 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
3 May
6-8 wk
13 Jun
14 Jun
0 wk
4 Jul
3 wk after