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Method
Rel. frost
Last spring frost (0°C) 5 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 102 days 5 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)
17 Apr – 1 May
10 Jun
5-7 wk
5 Jun
15 Jul
0 wk
6 Jun
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
22 Jun
4-6 wk
5 Jun
20 Jul
0 wk
6 Jun
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
19 Mar
8-12 wk
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Apr – 1 May
5 Jun
5-7 wk
5 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
14 – 21 May
8 Jun
3-4 wk
11 Jun
29 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
14 – 21 May
2 Jun
4-5 wk
18 Jun
30 Jun
2 wk after
30 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
13 Mar – 10 Apr
26 Mar
8-12 wk
5 Jun
0 wk
5 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
2 Jun
0 wk
2 Jun
0 wk
Maize
Zea mays
Greenhouse
8 – 15 May
29 May
3-4 wk
5 Jun
19 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
29 Jun
3-4 wk
7 Jun
20 Jul
0 wk
18 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
30 Jun
0 wk
5 Jun
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Apr – 1 May
5 Jun
5-7 wk
5 Jun
10 Jul
0 wk
5 Jun
30 Jun
0 wk
Potato
Solanum tuberosum
Fleece
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
0 wk
6 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
15 Jun
5-7 wk
5 Jun
20 Jul
0 wk
6 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
13 Jun
3-4 wk
18 Jun
4 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
14 May
3-4 wk
7 Jun
0 wk
18 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
17 Jun
4-6 wk
5 Jun
15 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 May
4 Jul
3-4 wk
5 Jun
25 Jul
0 wk
6 Jun
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Apr – 8 May
17 Jun
4-6 wk
5 Jun
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 May
13 May
2-4 wk
5 Jun
0 wk
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
2 Jun
0 wk
2 Jun
0 wk
Spinach
Spinacia oleracea
8 – 15 May
19 Jul
3-4 wk
5 Jun
9 Aug
0 wk
2 Jun
30 Jul
0 wk
Sweet potato
Ipomoea batatas
30 Jun – 14 Jul
4-6 wk
11 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
10 – 24 Apr
8 May
6-8 wk
5 Jun
19 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
14 – 28 May
15 Jun
2-4 wk
11 Jun
29 Jun
1 wk after
30 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
17 Jun
4-6 wk
5 Jun
15 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 May
19 Jun
3-4 wk
5 Jun
10 Jul
0 wk
6 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
7 – 21 May
22 May
4-6 wk
18 Jun
19 Jun
2 wk after
Lemon balm
Melissa officinalis
27 Mar – 10 Apr
15 May
8-10 wk
5 Jun
10 Jul
0 wk
30 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
6 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
10 – 24 Apr
29 May
6-8 wk
5 Jun
10 Jul
0 wk
6 Jun
30 Jun
0 wk
Spearmint
Mentha spicata
13 Mar – 10 Apr
15 May
8-12 wk
5 Jun
10 Jul
0 wk
30 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
5 Jun
9 Aug
0 wk
18 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
30 Apr
8-10 wk
7 Jun
25 Jun
0 wk
Common thyme
Thymus vulgaris
27 Mar – 10 Apr
5 May
8-10 wk
5 Jun
30 Jun
0 wk
Oregano
Origanum vulgare
10 – 24 Apr
19 May
6-8 wk
5 Jun
30 Jun
0 wk
30 Jun
4 wk after
Parsley
Petroselinum crispum
10 – 24 Apr
19 May
6-8 wk
5 Jun
30 Jun
0 wk
6 Jun
20 Jun
0 wk
Rosemary
Salvia rosmarinus
1 – 29 Mar
30 Mar
10-14 wk
7 Jun
8 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
21 – 28 May
29 May
3-4 wk
18 Jun
19 Jun
2 wk after
Cornflower
Centaurea cyanus
5 Jun
10 Jul
0 wk
6 Jun
30 Jun
0 wk
Statice
Limonium sinuatum
Fleece
2 – 16 Apr
23 Apr
8-10 wk
11 Jun
18 Jun
1 wk after
Sweet William
Dianthus barbatus
10 – 24 Apr
6-8 wk
5 Jun
0 wk
15 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
1 wk after
25 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
21 Apr – 5 May
6 May
6-8 wk
16 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
23 Apr – 21 May
27 May
4-8 wk
18 Jun
24 Jun
2 wk after
18 Jun
2 wk after
Foxglove
Digitalis purpurea
27 Mar – 10 Apr
8-10 wk
5 Jun
0 wk
18 Jun
2 wk after
Busy lizzie
Impatiens walleriana
14 Apr – 12 May
9 Jun
8-12 wk
7 Jul
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
12 May
6-8 wk
18 Jun
23 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
2 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
15 Apr
8-10 wk
7 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
5 Jun
25 Jun
0 wk
6 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
16 – 30 Apr
27 Apr
6-8 wk
11 Jun
1 wk after
25 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
15 Apr
8-12 wk
7 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
13 Mar – 10 Apr
16 Mar
8-12 wk
5 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
19 Mar – 16 Apr
22 Apr
8-12 wk
11 Jun
17 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
16 – 30 Apr
6 May
6-8 wk
11 Jun
17 Jun
1 wk after
Corn poppy
Papaver rhoeas
5 Jun
10 Jul
0 wk
6 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
13 Mar – 10 Apr
5 May
8-12 wk
5 Jun
30 Jun
0 wk
15 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
9 – 23 Apr
3 May
8-10 wk
18 Jun
28 Jun
2 wk after
Sweet pea
Lathyrus odoratus
10 Apr – 1 May
26 May
5-8 wk
5 Jun
30 Jun
0 wk
Stock
Matthiola incana
10 – 24 Apr
29 May
6-8 wk
5 Jun
10 Jul
0 wk
18 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
10 – 24 Apr
29 Apr
6-8 wk
5 Jun
10 Jun
0 wk
18 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
30 Apr – 14 May
15 May
4-6 wk
11 Jun
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
27 Mar – 10 Apr
15 May
8-10 wk
5 Jun
10 Jul
0 wk
15 Jun
30 Jun
1 wk after
Petunia
Petunia
Fleece
19 Mar – 16 Apr
23 Apr
8-12 wk
11 Jun
18 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
29 Apr
6-8 wk
7 Jun
10 Jun
0 wk
18 Jul
6 wk after
Common zinnia
Zinnia elegans
7 – 21 May
22 May
4-6 wk
18 Jun
19 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
14 – 28 May
29 May
3-5 wk
18 Jun
19 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
7 – 21 May
20 May
4-6 wk
18 Jun
2 wk after
18 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Mar – 23 Apr
22 May
8-12 wk
18 Jun
17 Jul
2 wk after
Bee balm
Monarda didyma
13 Mar – 10 Apr
15 Apr
8-12 wk
5 Jun
10 Jun
0 wk
30 Jun
4 wk after
Yarrow
Achillea millefolium
10 – 24 Apr
6-8 wk
5 Jun
0 wk
18 Jun
2 wk after
Safflower
Carthamus tinctorius
5 Jun
10 Jun
0 wk
6 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Apr
19 May
6-8 wk
5 Jun
30 Jun
0 wk
20 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
24 Apr – 8 May
2 Jun
4-6 wk
5 Jun
30 Jun
0 wk
18 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
19 Mar – 2 Apr
26 Mar
10-12 wk
11 Jun
1 wk after
Sunflower
Helianthus annuus
21 – 28 May
7 Jun
3-4 wk
18 Jun
28 Jun
2 wk after
30 Jun
4 wk after
China aster
Callistephus chinensis
23 Apr – 7 May
27 May
6-8 wk
18 Jun
8 Jul
2 wk after
18 Jul
6 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
12 May
6-8 wk
11 Jun
23 Jun
1 wk after
18 Jul
6 wk after
Hollyhock
Alcea rosea
10 – 24 Apr
6-8 wk
5 Jun
0 wk
18 Jun
2 wk after
Alpine delphinium
Delphinium elatum
13 Mar – 10 Apr
15 Apr
8-12 wk
5 Jun
10 Jun
0 wk
30 Jun
4 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
12 May
6-8 wk
18 Jun
23 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
17 May
6-8 wk
7 Jun
28 Jun
0 wk
18 Jul
6 wk after
Wood sage
Salvia nemorosa
27 Mar – 10 Apr
5 Apr
8-10 wk
5 Jun
0 wk
30 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
9 Apr – 7 May
8 May
6-10 wk
18 Jun
19 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
5 Jun
10 Jul
0 wk
6 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
9 – 23 Apr
26 Apr
8-10 wk
18 Jun
21 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Apr
29 Apr
6-8 wk
5 Jun
10 Jun
0 wk
18 Jun
2 wk after