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Method
Rel. frost
Last spring frost (0°C) 3 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 116 days 3 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)
15 – 29 Apr
8 Jun
5-7 wk
3 Jun
13 Jul
0 wk
4 Jun
3 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
22 Apr – 6 May
20 Jun
4-6 wk
3 Jun
18 Jul
0 wk
4 Jun
8 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
17 Mar – 14 Apr
8-12 wk
9 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
15 – 29 Apr
3 Jun
5-7 wk
3 Jun
8 Jul
0 wk
3 Jun
28 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
12 – 19 May
20 May
3-4 wk
9 Jun
10 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
12 – 19 May
31 May
4-5 wk
16 Jun
28 Jun
2 wk after
28 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
11 Mar – 8 Apr
24 Mar
8-12 wk
3 Jun
0 wk
3 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
31 May
0 wk
31 May
0 wk
Maize
Zea mays
Greenhouse
6 – 13 May
10 May
3-4 wk
3 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
8 – 15 May
27 Jun
3-4 wk
5 Jun
18 Jul
0 wk
16 Jun
8 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
3 Jun
28 Jun
0 wk
3 Jun
18 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
15 – 29 Apr
3 Jun
5-7 wk
3 Jun
8 Jul
0 wk
3 Jun
28 Jun
0 wk
Potato
Solanum tuberosum
Fleece
23 Apr – 7 May
15 May
4-6 wk
4 Jun
12 Jun
0 wk
4 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
15 – 29 Apr
13 Jun
5-7 wk
3 Jun
18 Jul
0 wk
4 Jun
8 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
12 – 19 May
21 Jun
3-4 wk
9 Jun
12 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
6 – 13 May
19 May
3-4 wk
3 Jun
9 Jun
0 wk
9 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Apr – 6 May
15 Jun
4-6 wk
3 Jun
13 Jul
0 wk
Lettuce
Lactuca sativa
6 – 13 May
2 Jul
3-4 wk
3 Jun
23 Jul
0 wk
4 Jun
13 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Apr – 6 May
15 Jun
4-6 wk
3 Jun
13 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
30 Apr – 14 May
22 May
2-4 wk
28 May
5 Jun
1 wk before
28 May
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
31 May
0 wk
31 May
0 wk
Spinach
Spinacia oleracea
6 – 13 May
17 Jul
3-4 wk
3 Jun
7 Aug
0 wk
31 May
28 Jul
0 wk
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
8 – 22 Apr
19 Apr
6-8 wk
3 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
12 – 26 May
27 May
2-4 wk
9 Jun
10 Jun
1 wk after
28 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Apr – 6 May
15 Jun
4-6 wk
3 Jun
13 Jul
0 wk
Garden pea
Pisum sativum
6 – 13 May
17 Jun
3-4 wk
3 Jun
8 Jul
0 wk
4 Jun
28 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
28 Apr – 12 May
30 May
4-6 wk
9 Jun
27 Jun
1 wk after
Lemon balm
Melissa officinalis
25 Mar – 8 Apr
13 May
8-10 wk
3 Jun
8 Jul
0 wk
28 Jun
28 Jun
4 wk after
Dill
Anethum graveolens
4 Jun
18 Jul
0 wk
Wild chives
Allium schoenoprasum
8 – 22 Apr
27 May
6-8 wk
3 Jun
8 Jul
0 wk
4 Jun
28 Jun
0 wk
Spearmint
Mentha spicata
11 Mar – 8 Apr
13 May
8-12 wk
3 Jun
8 Jul
0 wk
28 Jun
28 Jun
4 wk after
Coriander
Coriandrum sativum
3 Jun
7 Aug
0 wk
16 Jun
28 Jul
2 wk after
Garden sage
Salvia officinalis
27 Mar – 10 Apr
28 Apr
8-10 wk
5 Jun
23 Jun
0 wk
Common thyme
Thymus vulgaris
25 Mar – 8 Apr
3 May
8-10 wk
3 Jun
28 Jun
0 wk
Oregano
Origanum vulgare
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
0 wk
28 Jun
4 wk after
Parsley
Petroselinum crispum
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
0 wk
4 Jun
18 Jun
0 wk
Rosemary
Salvia rosmarinus
27 Feb – 27 Mar
30 Mar
10-14 wk
5 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
Greenhouse
12 – 19 May
6 Jun
3-4 wk
9 Jun
27 Jun
1 wk after
Cornflower
Centaurea cyanus
3 Jun
8 Jul
0 wk
4 Jun
28 Jun
0 wk
Statice
Limonium sinuatum
Fleece
31 Mar – 14 Apr
30 Apr
8-10 wk
9 Jun
25 Jun
1 wk after
Sweet William
Dianthus barbatus
8 – 22 Apr
6-8 wk
3 Jun
0 wk
13 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
14 – 28 Apr
14 May
6-8 wk
9 Jun
25 Jun
1 wk after
23 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
6 May
6-8 wk
14 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
14 Apr – 12 May
31 May
4-8 wk
9 Jun
28 Jun
1 wk after
9 Jun
18 Jun
1 wk after
Foxglove
Digitalis purpurea
25 Mar – 8 Apr
8-10 wk
3 Jun
0 wk
16 Jun
2 wk after
Busy lizzie
Impatiens walleriana
12 Apr – 10 May
21 May
8-12 wk
5 Jul
16 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
5 – 19 May
4-6 wk
16 Jun
2 wk after
Chinese lantern
Physalis alkekengi
27 Mar – 10 Apr
13 Apr
8-10 wk
5 Jun
8 Jun
0 wk
Love in a mist
Nigella damascena
3 Jun
23 Jun
0 wk
4 Jun
13 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
1 wk after
23 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
13 Mar – 10 Apr
13 Apr
8-12 wk
5 Jun
8 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
11 Mar – 8 Apr
14 Mar
8-12 wk
3 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
17 Mar – 14 Apr
22 Apr
8-12 wk
9 Jun
17 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
14 – 28 Apr
6 May
6-8 wk
9 Jun
17 Jun
1 wk after
Corn poppy
Papaver rhoeas
3 Jun
8 Jul
0 wk
4 Jun
28 Jun
0 wk
Snapdragon
Antirrhinum majus
11 Mar – 8 Apr
3 May
8-12 wk
3 Jun
28 Jun
0 wk
13 Jun
18 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
7 – 21 Apr
10 May
8-10 wk
16 Jun
5 Jul
2 wk after
Sweet pea
Lathyrus odoratus
8 – 29 Apr
24 May
5-8 wk
3 Jun
28 Jun
0 wk
Stock
Matthiola incana
8 – 22 Apr
27 May
6-8 wk
3 Jun
8 Jul
0 wk
16 Jun
28 Jun
2 wk after
Wormwood
Artemisia absinthium
8 – 22 Apr
27 Apr
6-8 wk
3 Jun
8 Jun
0 wk
16 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
28 Apr – 12 May
15 May
4-6 wk
9 Jun
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
25 Mar – 8 Apr
13 May
8-10 wk
3 Jun
8 Jul
0 wk
13 Jun
28 Jun
1 wk after
Petunia
Petunia
Fleece
17 Mar – 14 Apr
30 Apr
8-12 wk
9 Jun
25 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Apr
27 Apr
6-8 wk
5 Jun
8 Jun
0 wk
16 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
28 Apr – 12 May
30 May
4-6 wk
9 Jun
27 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
5 – 19 May
6 Jun
3-5 wk
9 Jun
27 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
28 Apr – 12 May
31 May
4-6 wk
9 Jun
28 Jun
1 wk after
28 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
24 Mar – 21 Apr
22 May
8-12 wk
16 Jun
17 Jul
2 wk after
Bee balm
Monarda didyma
11 Mar – 8 Apr
13 Apr
8-12 wk
3 Jun
8 Jun
0 wk
28 Jun
4 wk after
Yarrow
Achillea millefolium
8 – 22 Apr
6-8 wk
3 Jun
0 wk
16 Jun
2 wk after
Safflower
Carthamus tinctorius
3 Jun
8 Jun
0 wk
4 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
8 – 22 Apr
17 May
6-8 wk
3 Jun
28 Jun
0 wk
18 May
18 Jun
2 wk before
Bishop's flower
Ammi majus
22 Apr – 6 May
31 May
4-6 wk
3 Jun
28 Jun
0 wk
16 Jun
18 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
17 – 31 Mar
30 Mar
10-12 wk
9 Jun
1 wk after
Sunflower
Helianthus annuus
19 – 26 May
7 Jun
3-4 wk
16 Jun
28 Jun
2 wk after
28 Jun
4 wk after
China aster
Callistephus chinensis
21 Apr – 5 May
27 May
6-8 wk
16 Jun
8 Jul
2 wk after
16 Jul
6 wk after
Annual phlox
Phlox drummondii
14 – 28 Apr
12 May
6-8 wk
9 Jun
23 Jun
1 wk after
16 Jul
6 wk after
Hollyhock
Alcea rosea
8 – 22 Apr
6-8 wk
3 Jun
0 wk
16 Jun
2 wk after
Alpine delphinium
Delphinium elatum
11 Mar – 8 Apr
13 Apr
8-12 wk
3 Jun
8 Jun
0 wk
28 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
1 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Apr
17 May
6-8 wk
5 Jun
28 Jun
0 wk
16 Jul
6 wk after
Wood sage
Salvia nemorosa
25 Mar – 8 Apr
3 Apr
8-10 wk
3 Jun
0 wk
28 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
31 Mar – 28 Apr
16 May
6-10 wk
9 Jun
27 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
3 Jun
8 Jul
0 wk
4 Jun
28 Jun
0 wk
Painted tongue
Salpiglossis sinuata
7 – 21 Apr
3 May
8-10 wk
16 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Apr
27 Apr
6-8 wk
3 Jun
8 Jun
0 wk
16 Jun
2 wk after