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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 111 days 1 Jun – 20 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)
13 – 27 Apr
10 Jun
5-7 wk
1 Jun
15 Jul
0 wk
2 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
22 Jun
4-6 wk
1 Jun
20 Jul
0 wk
2 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
25 Mar
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
5 Jun
5-7 wk
1 Jun
10 Jul
0 wk
1 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
10 Jun
3-4 wk
7 Jun
1 Jul
1 wk after
Florence Fennel
Foeniculum vulgare
29 May – 5 Jun
4-5 wk
3 Jul
5 wk after
14 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
9 Mar – 6 Apr
25 Mar
8-12 wk
1 Jun
0 wk
7 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Maize
Zea mays
Fleece
10 – 17 May
3-4 wk
7 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
29 Jun
3-4 wk
3 Jun
20 Jul
0 wk
14 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
30 Jun
0 wk
1 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
5 Jun
5-7 wk
1 Jun
10 Jul
0 wk
1 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
16 May
4-6 wk
11 Jun
13 Jun
1 wk after
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
15 Jun
5-7 wk
1 Jun
20 Jul
0 wk
2 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
15 Jun
3-4 wk
14 Jun
6 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
25 May
3-4 wk
3 Jun
15 Jun
0 wk
14 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
17 Jun
4-6 wk
1 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
4 Jul
3-4 wk
1 Jun
25 Jul
0 wk
2 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
17 Jun
4-6 wk
1 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
20 May
2-4 wk
1 Jun
3 Jun
0 wk
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Spinach
Spinacia oleracea
4 – 11 May
19 Jul
3-4 wk
1 Jun
9 Aug
0 wk
29 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
12 – 26 Apr
18 Apr
6-8 wk
7 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
17 Jun
2-4 wk
7 Jun
1 Jul
1 wk after
26 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
17 Jun
4-6 wk
1 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
19 Jun
3-4 wk
1 Jun
10 Jul
0 wk
2 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
Fleece
3 – 17 May
24 May
4-6 wk
14 Jun
21 Jun
2 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
15 May
8-10 wk
1 Jun
10 Jul
0 wk
26 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
2 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
6 – 20 Apr
29 May
6-8 wk
1 Jun
10 Jul
0 wk
2 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
9 Mar – 6 Apr
15 May
8-12 wk
1 Jun
10 Jul
0 wk
26 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
1 Jun
9 Aug
0 wk
14 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
30 Apr
8-10 wk
3 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
5 May
8-10 wk
1 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
19 May
6-8 wk
1 Jun
30 Jun
0 wk
26 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
19 May
6-8 wk
1 Jun
30 Jun
0 wk
2 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
1 Apr
10-14 wk
3 Jun
10 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
17 – 24 May
31 May
3-4 wk
14 Jun
21 Jun
2 wk after
Cornflower
Centaurea cyanus
1 Jun
10 Jul
0 wk
2 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
5 – 19 Apr
20 Apr
8-10 wk
14 Jun
15 Jun
2 wk after
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
19 Apr – 3 May
4 May
6-8 wk
14 Jun
15 Jun
2 wk after
7 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
6 May
6-8 wk
12 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
19 Apr – 17 May
2 Jun
4-8 wk
14 Jun
30 Jun
2 wk after
14 Jun
20 Jun
2 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
14 Jun
2 wk after
Busy lizzie
Impatiens walleriana
10 Apr – 8 May
11 Jun
8-12 wk
3 Jul
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
14 May
6-8 wk
14 Jun
25 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
2 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
15 Apr
8-10 wk
3 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
25 Jun
0 wk
2 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
12 – 26 Apr
6 May
6-8 wk
7 Jun
17 Jun
1 wk after
21 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
15 Apr
8-12 wk
3 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
15 Mar – 12 Apr
16 Mar
8-12 wk
7 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
22 Mar – 19 Apr
16 Apr
8-12 wk
14 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
19 Apr – 3 May
30 Apr
6-8 wk
14 Jun
2 wk after
Corn poppy
Papaver rhoeas
1 Jun
10 Jul
0 wk
2 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
5 May
8-12 wk
1 Jun
30 Jun
0 wk
11 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
24 Apr – 8 May
30 Apr
8-10 wk
3 Jul
5 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
26 May
5-8 wk
1 Jun
30 Jun
0 wk
Stock
Matthiola incana
6 – 20 Apr
29 May
6-8 wk
1 Jun
10 Jul
0 wk
14 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
29 Apr
6-8 wk
1 Jun
10 Jun
0 wk
14 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
26 Apr – 10 May
15 May
4-6 wk
7 Jun
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
15 May
8-10 wk
1 Jun
10 Jul
0 wk
11 Jun
30 Jun
1 wk after
Petunia
Petunia
22 Mar – 19 Apr
20 Apr
8-12 wk
14 Jun
15 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
29 Apr
6-8 wk
3 Jun
10 Jun
0 wk
14 Jul
6 wk after
Common zinnia
Zinnia elegans
3 – 17 May
24 May
4-6 wk
14 Jun
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
10 – 24 May
31 May
3-5 wk
14 Jun
21 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 May
20 May
4-6 wk
14 Jun
17 Jun
2 wk after
14 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
10 Apr – 8 May
16 May
8-12 wk
3 Jul
11 Jul
5 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
15 Apr
8-12 wk
1 Jun
10 Jun
0 wk
26 Jun
4 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Safflower
Carthamus tinctorius
1 Jun
10 Jun
0 wk
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
19 May
6-8 wk
1 Jun
30 Jun
0 wk
16 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
2 Jun
4-6 wk
1 Jun
30 Jun
0 wk
14 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
15 – 29 Mar
1 Apr
10-12 wk
7 Jun
10 Jun
1 wk after
Sunflower
Helianthus annuus
17 – 24 May
9 Jun
3-4 wk
14 Jun
30 Jun
2 wk after
26 Jun
4 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
29 May
6-8 wk
14 Jun
10 Jul
2 wk after
14 Jul
6 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
14 May
6-8 wk
7 Jun
25 Jun
1 wk after
14 Jul
6 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
15 Apr
8-12 wk
1 Jun
10 Jun
0 wk
26 Jun
4 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
14 May
6-8 wk
14 Jun
25 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
19 May
6-8 wk
3 Jun
30 Jun
0 wk
14 Jul
6 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
5 Apr
8-10 wk
1 Jun
0 wk
26 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
5 Apr – 3 May
10 May
6-10 wk
14 Jun
21 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
10 Jul
0 wk
2 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
27 Apr
8-10 wk
14 Jun
22 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
29 Apr
6-8 wk
1 Jun
10 Jun
0 wk
14 Jun
2 wk after