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Method
Rel. frost
Last spring frost (0°C) 4 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 115 days 4 Jun – 27 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)
16 – 30 Apr
13 Jun
5-7 wk
4 Jun
18 Jul
0 wk
5 Jun
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
23 Apr – 7 May
25 Jun
4-6 wk
4 Jun
23 Jul
0 wk
5 Jun
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
18 Mar – 15 Apr
12 Apr
8-12 wk
10 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
16 – 30 Apr
8 Jun
5-7 wk
4 Jun
13 Jul
0 wk
4 Jun
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
20 – 27 May
6 Jun
3-4 wk
17 Jun
27 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
13 – 20 May
5 Jun
4-5 wk
17 Jun
3 Jul
2 wk after
29 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
12 Mar – 9 Apr
29 Mar
8-12 wk
4 Jun
0 wk
10 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 Jun
9 Jun
0 wk
5 Jun
0 wk
Maize
Zea mays
Fleece
13 – 20 May
27 May
3-4 wk
10 Jun
17 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 May
2 Jul
3-4 wk
6 Jun
23 Jul
0 wk
17 Jun
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
4 Jun
3 Jul
0 wk
4 Jun
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
16 – 30 Apr
8 Jun
5-7 wk
4 Jun
13 Jul
0 wk
4 Jun
3 Jul
0 wk
Potato
Solanum tuberosum
3 – 17 May
21 May
4-6 wk
14 Jun
18 Jun
1 wk after
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
16 – 30 Apr
18 Jun
5-7 wk
4 Jun
23 Jul
0 wk
5 Jun
13 Jul
0 wk
Pumpkin
Cucurbita pepo
8 – 15 Jun
11 Jun
3-4 wk
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 May
1 Jun
3-4 wk
6 Jun
22 Jun
0 wk
17 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Apr – 7 May
20 Jun
4-6 wk
4 Jun
18 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 May
7 Jul
3-4 wk
4 Jun
28 Jul
0 wk
5 Jun
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
23 Apr – 7 May
20 Jun
4-6 wk
4 Jun
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 May
30 May
2-4 wk
4 Jun
13 Jun
0 wk
4 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 Jun
9 Jun
0 wk
5 Jun
0 wk
Spinach
Spinacia oleracea
7 – 14 May
22 Jul
3-4 wk
4 Jun
12 Aug
0 wk
1 Jun
2 Aug
0 wk
Sweet potato
Ipomoea batatas
29 Jun – 13 Jul
4-6 wk
10 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
15 – 29 Apr
6 May
6-8 wk
10 Jun
17 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
20 May – 3 Jun
13 Jun
2-4 wk
17 Jun
27 Jun
2 wk after
17 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Apr – 7 May
20 Jun
4-6 wk
4 Jun
18 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 May
22 Jun
3-4 wk
4 Jun
13 Jul
0 wk
5 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
6 – 20 May
28 May
4-6 wk
17 Jun
25 Jun
2 wk after
Lemon balm
Melissa officinalis
26 Mar – 9 Apr
18 May
8-10 wk
4 Jun
13 Jul
0 wk
29 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
5 Jun
23 Jul
0 wk
Wild chives
Allium schoenoprasum
9 – 23 Apr
1 Jun
6-8 wk
4 Jun
13 Jul
0 wk
5 Jun
3 Jul
0 wk
Spearmint
Mentha spicata
12 Mar – 9 Apr
18 May
8-12 wk
4 Jun
13 Jul
0 wk
29 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
4 Jun
12 Aug
0 wk
17 Jun
2 Aug
2 wk after
Garden sage
Salvia officinalis
28 Mar – 11 Apr
3 May
8-10 wk
6 Jun
28 Jun
0 wk
Common thyme
Thymus vulgaris
26 Mar – 9 Apr
8 May
8-10 wk
4 Jun
3 Jul
0 wk
Oregano
Origanum vulgare
9 – 23 Apr
22 May
6-8 wk
4 Jun
3 Jul
0 wk
29 Jun
4 wk after
Parsley
Petroselinum crispum
9 – 23 Apr
22 May
6-8 wk
4 Jun
3 Jul
0 wk
5 Jun
23 Jun
0 wk
Rosemary
Salvia rosmarinus
28 Feb – 28 Mar
4 Apr
10-14 wk
6 Jun
13 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
Fleece
20 – 27 May
4 Jun
3-4 wk
17 Jun
25 Jun
2 wk after
Cornflower
Centaurea cyanus
4 Jun
13 Jul
0 wk
5 Jun
3 Jul
0 wk
Statice
Limonium sinuatum
8 – 22 Apr
26 Apr
8-10 wk
17 Jun
21 Jun
2 wk after
Sweet William
Dianthus barbatus
9 – 23 Apr
6-8 wk
4 Jun
0 wk
14 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
22 Apr – 6 May
10 May
6-8 wk
17 Jun
21 Jun
2 wk after
10 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
20 Apr – 4 May
17 May
6-8 wk
15 Jun
28 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
4 May – 1 Jun
31 May
4-8 wk
29 Jun
4 wk after
29 Jun
4 wk after
Foxglove
Digitalis purpurea
26 Mar – 9 Apr
8-10 wk
4 Jun
0 wk
17 Jun
2 wk after
Busy lizzie
Impatiens walleriana
13 Apr – 11 May
15 Jun
8-12 wk
6 Jul
10 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
22 Apr – 6 May
20 May
6-8 wk
17 Jun
1 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
6 – 20 May
4-6 wk
17 Jun
2 wk after
Chinese lantern
Physalis alkekengi
28 Mar – 11 Apr
18 Apr
8-10 wk
6 Jun
13 Jun
0 wk
Love in a mist
Nigella damascena
4 Jun
28 Jun
0 wk
5 Jun
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
22 Apr – 6 May
30 Apr
6-8 wk
17 Jun
2 wk after
10 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
14 Mar – 11 Apr
18 Apr
8-12 wk
6 Jun
13 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
19 Mar
8-12 wk
10 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
25 Mar – 22 Apr
20 Apr
8-12 wk
17 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
22 Apr – 6 May
4 May
6-8 wk
17 Jun
2 wk after
Corn poppy
Papaver rhoeas
4 Jun
13 Jul
0 wk
5 Jun
3 Jul
0 wk
Snapdragon
Antirrhinum majus
12 Mar – 9 Apr
8 May
8-12 wk
4 Jun
3 Jul
0 wk
14 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
27 Apr – 11 May
6 May
8-10 wk
6 Jul
5 wk after
Sweet pea
Lathyrus odoratus
9 – 30 Apr
29 May
5-8 wk
4 Jun
3 Jul
0 wk
Stock
Matthiola incana
9 – 23 Apr
1 Jun
6-8 wk
4 Jun
13 Jul
0 wk
17 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
9 – 23 Apr
2 May
6-8 wk
4 Jun
13 Jun
0 wk
17 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
6 – 20 May
13 May
4-6 wk
17 Jun
2 wk after
Garden pansy
Viola × wittrockiana
26 Mar – 9 Apr
18 May
8-10 wk
4 Jun
13 Jul
0 wk
14 Jun
3 Jul
1 wk after
Petunia
Petunia
25 Mar – 22 Apr
26 Apr
8-12 wk
17 Jun
21 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Apr
2 May
6-8 wk
6 Jun
13 Jun
0 wk
17 Jul
6 wk after
Common zinnia
Zinnia elegans
6 – 20 May
28 May
4-6 wk
17 Jun
25 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
13 – 27 May
4 Jun
3-5 wk
17 Jun
25 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
6 – 20 May
31 May
4-6 wk
17 Jun
28 Jun
2 wk after
17 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
13 Apr – 11 May
20 May
8-12 wk
6 Jul
15 Jul
5 wk after
Bee balm
Monarda didyma
12 Mar – 9 Apr
18 Apr
8-12 wk
4 Jun
13 Jun
0 wk
29 Jun
4 wk after
Yarrow
Achillea millefolium
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Safflower
Carthamus tinctorius
4 Jun
13 Jun
0 wk
5 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
9 – 23 Apr
22 May
6-8 wk
4 Jun
3 Jul
0 wk
19 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
23 Apr – 7 May
5 Jun
4-6 wk
4 Jun
3 Jul
0 wk
17 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
25 Mar – 8 Apr
30 Mar
10-12 wk
17 Jun
2 wk after
Sunflower
Helianthus annuus
20 – 27 May
12 Jun
3-4 wk
17 Jun
3 Jul
2 wk after
29 Jun
4 wk after
China aster
Callistephus chinensis
22 Apr – 6 May
1 Jun
6-8 wk
17 Jun
13 Jul
2 wk after
17 Jul
6 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
1 wk after
17 Jul
6 wk after
Hollyhock
Alcea rosea
9 – 23 Apr
6-8 wk
4 Jun
0 wk
17 Jun
2 wk after
Alpine delphinium
Delphinium elatum
12 Mar – 9 Apr
18 Apr
8-12 wk
4 Jun
13 Jun
0 wk
29 Jun
4 wk after
African marigold
Tagetes erecta
22 Apr – 6 May
20 May
6-8 wk
17 Jun
1 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Apr
22 May
6-8 wk
6 Jun
3 Jul
0 wk
17 Jul
6 wk after
Wood sage
Salvia nemorosa
26 Mar – 9 Apr
8 Apr
8-10 wk
4 Jun
0 wk
29 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
8 Apr – 6 May
14 May
6-10 wk
17 Jun
25 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
4 Jun
13 Jul
0 wk
5 Jun
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
8 – 22 Apr
5 May
8-10 wk
17 Jun
30 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
9 – 23 Apr
2 May
6-8 wk
4 Jun
13 Jun
0 wk
17 Jun
2 wk after