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Method
Rel. frost
Last spring frost (0°C) 10 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 97 days 10 Jun – 15 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)
22 Apr – 6 May
10 Jun
5-7 wk
10 Jun
15 Jul
0 wk
11 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
29 Apr – 13 May
22 Jun
4-6 wk
10 Jun
20 Jul
0 wk
11 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
24 Mar – 21 Apr
8-12 wk
16 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
22 Apr – 6 May
5 Jun
5-7 wk
10 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
19 – 26 May
22 May
3-4 wk
16 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
19 – 26 May
2 Jun
4-5 wk
23 Jun
30 Jun
2 wk after
5 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
21 – 28 Jun
3-4 wk
19 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
18 Mar – 15 Apr
26 Mar
8-12 wk
10 Jun
0 wk
10 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
7 Jun
7 Jun
0 wk
7 Jun
0 wk
Maize
Zea mays
Greenhouse
13 – 20 May
3-4 wk
10 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
29 Jun
3-4 wk
12 Jun
20 Jul
0 wk
23 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 Jun
30 Jun
0 wk
10 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
22 Apr – 6 May
5 Jun
5-7 wk
10 Jun
10 Jul
0 wk
10 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Fleece
30 Apr – 14 May
20 May
4-6 wk
11 Jun
17 Jun
0 wk
11 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
22 Apr – 6 May
15 Jun
5-7 wk
10 Jun
20 Jul
0 wk
11 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
26 May – 2 Jun
27 May
3-4 wk
23 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 May
15 May
3-4 wk
12 Jun
0 wk
23 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
29 Apr – 13 May
17 Jun
4-6 wk
10 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 May
4 Jul
3-4 wk
10 Jun
25 Jul
0 wk
11 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
29 Apr – 13 May
17 Jun
4-6 wk
10 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 May
16 May
2-4 wk
10 Jun
0 wk
10 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
7 Jun
7 Jun
0 wk
7 Jun
0 wk
Spinach
Spinacia oleracea
13 – 20 May
19 Jul
3-4 wk
10 Jun
9 Aug
0 wk
7 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
5 – 19 Jul
4-6 wk
16 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
15 – 29 Apr
21 Apr
6-8 wk
10 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
19 May – 2 Jun
29 May
2-4 wk
16 Jun
1 wk after
5 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
29 Apr – 13 May
17 Jun
4-6 wk
10 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 May
19 Jun
3-4 wk
10 Jun
10 Jul
0 wk
11 Jun
30 Jun
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
5 – 19 May
25 May
4-6 wk
16 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
1 – 15 Apr
15 May
8-10 wk
10 Jun
10 Jul
0 wk
5 Jul
4 wk after
Dill
Anethum graveolens
11 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
15 – 29 Apr
29 May
6-8 wk
10 Jun
10 Jul
0 wk
11 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
18 Mar – 15 Apr
15 May
8-12 wk
10 Jun
10 Jul
0 wk
5 Jul
4 wk after
Coriander
Coriandrum sativum
10 Jun
9 Aug
0 wk
23 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
3 – 17 Apr
30 Apr
8-10 wk
12 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
1 – 15 Apr
5 May
8-10 wk
10 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
15 – 29 Apr
19 May
6-8 wk
10 Jun
30 Jun
0 wk
5 Jul
4 wk after
Parsley
Petroselinum crispum
15 – 29 Apr
19 May
6-8 wk
10 Jun
30 Jun
0 wk
11 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
6 Mar – 3 Apr
24 Mar
10-14 wk
12 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
19 – 26 May
1 Jun
3-4 wk
16 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
10 Jun
10 Jul
0 wk
11 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
Fleece
7 – 21 Apr
22 Apr
8-10 wk
16 Jun
17 Jun
1 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
21 Apr – 5 May
6 May
6-8 wk
16 Jun
17 Jun
1 wk after
30 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
26 Apr – 10 May
1 May
6-8 wk
21 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
21 Apr – 19 May
2 Jun
4-8 wk
16 Jun
30 Jun
1 wk after
16 Jun
20 Jun
1 wk after
Foxglove
Digitalis purpurea
1 – 15 Apr
8-10 wk
10 Jun
0 wk
23 Jun
2 wk after
Busy lizzie
Impatiens walleriana
19 Apr – 17 May
23 May
8-12 wk
12 Jul
18 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
28 Apr – 12 May
5 May
6-8 wk
23 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
2 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Apr
15 Apr
8-10 wk
12 Jun
0 wk
Love in a mist
Nigella damascena
10 Jun
25 Jun
0 wk
11 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
21 Apr – 5 May
26 Apr
6-8 wk
16 Jun
1 wk after
30 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
20 Mar – 17 Apr
15 Apr
8-12 wk
12 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
18 Mar – 15 Apr
8-12 wk
10 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
24 Mar – 21 Apr
17 Apr
8-12 wk
16 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
21 Apr – 5 May
1 May
6-8 wk
16 Jun
1 wk after
Corn poppy
Papaver rhoeas
10 Jun
10 Jul
0 wk
11 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
18 Mar – 15 Apr
5 May
8-12 wk
10 Jun
30 Jun
0 wk
20 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
14 – 28 Apr
2 May
8-10 wk
23 Jun
27 Jun
2 wk after
Sweet pea
Lathyrus odoratus
15 Apr – 6 May
26 May
5-8 wk
10 Jun
30 Jun
0 wk
Stock
Matthiola incana
15 – 29 Apr
29 May
6-8 wk
10 Jun
10 Jul
0 wk
23 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
0 wk
23 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
5 – 19 May
10 May
4-6 wk
16 Jun
1 wk after
Garden pansy
Viola × wittrockiana
1 – 15 Apr
15 May
8-10 wk
10 Jun
10 Jul
0 wk
20 Jun
30 Jun
1 wk after
Petunia
Petunia
Fleece
24 Mar – 21 Apr
22 Apr
8-12 wk
16 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
17 Apr – 1 May
29 Apr
6-8 wk
12 Jun
0 wk
23 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
5 – 19 May
25 May
4-6 wk
16 Jun
22 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
12 – 26 May
1 Jun
3-5 wk
16 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 May
15 May
4-6 wk
23 Jun
2 wk after
23 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
31 Mar – 28 Apr
17 May
8-12 wk
23 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
18 Mar – 15 Apr
15 Apr
8-12 wk
10 Jun
10 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
10 Jun
0 wk
11 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
15 – 29 Apr
19 May
6-8 wk
10 Jun
30 Jun
0 wk
25 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
29 Apr – 13 May
2 Jun
4-6 wk
10 Jun
30 Jun
0 wk
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
24 Mar – 7 Apr
10-12 wk
16 Jun
1 wk after
Sunflower
Helianthus annuus
26 May – 2 Jun
1 Jun
3-4 wk
23 Jun
2 wk after
5 Jul
4 wk after
China aster
Callistephus chinensis
28 Apr – 12 May
21 May
6-8 wk
23 Jun
2 Jul
2 wk after
23 Jul
6 wk after
Annual phlox
Phlox drummondii
21 Apr – 5 May
5 May
6-8 wk
16 Jun
16 Jun
1 wk after
23 Jul
6 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
15 Apr
8-12 wk
10 Jun
10 Jun
0 wk
5 Jul
4 wk after
African marigold
Tagetes erecta
28 Apr – 12 May
5 May
6-8 wk
23 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
11 May
6-8 wk
12 Jun
22 Jun
0 wk
23 Jul
6 wk after
Wood sage
Salvia nemorosa
1 – 15 Apr
5 Apr
8-10 wk
10 Jun
0 wk
5 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
7 Apr – 5 May
11 May
6-10 wk
16 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
10 Jun
10 Jul
0 wk
11 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
14 – 28 Apr
20 Apr
8-10 wk
23 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
15 – 29 Apr
29 Apr
6-8 wk
10 Jun
10 Jun
0 wk
23 Jun
2 wk after