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Method
Rel. frost
Last spring frost (0°C) 7 Jun Normal year · 20 years of data
Frost-free season 88 days 7 Jun – 3 Sep
Probability that frost is over

50% = 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)
19 Apr – 3 May
12 Jun
5-7 wk
7 Jun
17 Jul
0 wk
8 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
26 Apr – 10 May
24 Jun
4-6 wk
7 Jun
22 Jul
0 wk
8 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
21 Mar – 18 Apr
8-12 wk
13 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
19 Apr – 3 May
7 Jun
5-7 wk
7 Jun
12 Jul
0 wk
7 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
16 – 23 May
16 May
3-4 wk
13 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
9 – 16 May
4 Jun
4-5 wk
13 Jun
2 Jul
1 wk after
20 Jun
22 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
18 – 25 Jun
3-4 wk
16 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
15 Mar – 12 Apr
20 Mar
8-12 wk
7 Jun
0 wk
7 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
29 May
4 Jun
1 wk before
29 May
1 wk before
Maize
Zea mays
Greenhouse
10 – 17 May
3-4 wk
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 May
29 Jun
3-4 wk
9 Jun
20 Jul
0 wk
20 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Jun
2 Jul
0 wk
7 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
19 Apr – 3 May
7 Jun
5-7 wk
7 Jun
12 Jul
0 wk
7 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
23 Apr – 7 May
18 May
4-6 wk
4 Jun
15 Jun
0 wk
4 Jun
5 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
19 Apr – 3 May
17 Jun
5-7 wk
7 Jun
22 Jul
0 wk
8 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
16 – 23 May
16 Jun
3-4 wk
13 Jun
7 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
10 – 17 May
3-4 wk
7 Jun
0 wk
13 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
26 Apr – 10 May
19 Jun
4-6 wk
7 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 May
6 Jul
3-4 wk
7 Jun
27 Jul
0 wk
8 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
26 Apr – 10 May
19 Jun
4-6 wk
7 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
4 – 18 May
18 May
2-4 wk
1 Jun
1 Jun
1 wk before
1 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
29 May
4 Jun
1 wk before
29 May
1 wk before
Spinach
Spinacia oleracea
10 – 17 May
21 Jul
3-4 wk
7 Jun
11 Aug
0 wk
4 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
2 – 16 Jul
4-6 wk
13 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
12 – 26 Apr
15 Apr
6-8 wk
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
16 – 30 May
23 May
2-4 wk
13 Jun
1 wk after
2 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
26 Apr – 10 May
19 Jun
4-6 wk
7 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 May
21 Jun
3-4 wk
7 Jun
12 Jul
0 wk
8 Jun
2 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
Greenhouse
2 – 16 May
25 May
4-6 wk
13 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
29 Mar – 12 Apr
17 May
8-10 wk
7 Jun
12 Jul
0 wk
2 Jul
2 Jul
4 wk after
Dill
Anethum graveolens
8 Jun
20 Jul
0 wk
Wild chives
Allium schoenoprasum
12 – 26 Apr
31 May
6-8 wk
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
15 Mar – 12 Apr
17 May
8-12 wk
7 Jun
12 Jul
0 wk
2 Jul
2 Jul
4 wk after
Coriander
Coriandrum sativum
7 Jun
9 Aug
0 wk
20 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
31 Mar – 14 Apr
2 May
8-10 wk
9 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
29 Mar – 12 Apr
7 May
8-10 wk
7 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
12 – 26 Apr
21 May
6-8 wk
7 Jun
2 Jul
0 wk
2 Jul
4 wk after
Parsley
Petroselinum crispum
12 – 26 Apr
21 May
6-8 wk
7 Jun
2 Jul
0 wk
8 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
3 – 31 Mar
26 Mar
10-14 wk
9 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
16 – 23 May
1 Jun
3-4 wk
13 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
4 – 18 Apr
22 Apr
8-10 wk
13 Jun
17 Jun
1 wk after
Sweet William
Dianthus barbatus
12 – 26 Apr
6-8 wk
7 Jun
0 wk
17 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
18 Apr – 2 May
6 May
6-8 wk
13 Jun
17 Jun
1 wk after
27 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
14 – 28 Apr
10 May
6-8 wk
9 Jun
21 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
18 Apr – 16 May
4 Jun
4-8 wk
13 Jun
2 Jul
1 wk after
13 Jun
22 Jun
1 wk after
Foxglove
Digitalis purpurea
29 Mar – 12 Apr
8-10 wk
7 Jun
0 wk
20 Jun
2 wk after
Busy lizzie
Impatiens walleriana
16 Apr – 14 May
17 May
8-12 wk
9 Jul
12 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
18 Apr – 2 May
16 May
6-8 wk
13 Jun
27 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 May
4-6 wk
20 Jun
2 wk after
Chinese lantern
Physalis alkekengi
31 Mar – 14 Apr
15 Apr
8-10 wk
9 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
7 Jun
27 Jun
0 wk
8 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
18 Apr – 2 May
26 Apr
6-8 wk
13 Jun
1 wk after
27 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
17 Mar – 14 Apr
15 Apr
8-12 wk
9 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
15 Mar – 12 Apr
18 Mar
8-12 wk
7 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
18 Apr – 2 May
1 May
6-8 wk
13 Jun
1 wk after
Corn poppy
Papaver rhoeas
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
15 Mar – 12 Apr
7 May
8-12 wk
7 Jun
2 Jul
0 wk
17 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
4 – 18 Apr
14 May
8-10 wk
13 Jun
9 Jul
1 wk after
Sweet pea
Lathyrus odoratus
12 Apr – 3 May
28 May
5-8 wk
7 Jun
2 Jul
0 wk
Stock
Matthiola incana
12 – 26 Apr
31 May
6-8 wk
7 Jun
12 Jul
0 wk
20 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
12 – 26 Apr
1 May
6-8 wk
7 Jun
12 Jun
0 wk
20 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
2 – 16 May
10 May
4-6 wk
13 Jun
1 wk after
Garden pansy
Viola × wittrockiana
29 Mar – 12 Apr
17 May
8-10 wk
7 Jun
12 Jul
0 wk
17 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
21 Mar – 18 Apr
22 Apr
8-12 wk
13 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
20 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
2 – 16 May
25 May
4-6 wk
13 Jun
22 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
9 – 23 May
1 Jun
3-5 wk
13 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
2 – 16 May
24 May
4-6 wk
13 Jun
21 Jun
1 wk after
2 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
28 Mar – 25 Apr
17 May
8-12 wk
20 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
15 Mar – 12 Apr
17 Apr
8-12 wk
7 Jun
12 Jun
0 wk
2 Jul
4 wk after
Yarrow
Achillea millefolium
12 – 26 Apr
6-8 wk
7 Jun
0 wk
20 Jun
2 wk after
Safflower
Carthamus tinctorius
7 Jun
12 Jun
0 wk
8 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
12 – 26 Apr
21 May
6-8 wk
7 Jun
2 Jul
0 wk
22 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
26 Apr – 10 May
4 Jun
4-6 wk
7 Jun
2 Jul
0 wk
20 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
21 Mar – 4 Apr
23 Mar
10-12 wk
13 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
16 – 23 May
11 Jun
3-4 wk
13 Jun
2 Jul
1 wk after
20 Jun
22 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
18 Apr – 2 May
31 May
6-8 wk
13 Jun
12 Jul
1 wk after
2 Jul
2 Jul
4 wk after
Annual phlox
Phlox drummondii
18 Apr – 2 May
30 Apr
6-8 wk
13 Jun
1 wk after
20 Jul
6 wk after
Hollyhock
Alcea rosea
12 – 26 Apr
6-8 wk
7 Jun
0 wk
20 Jun
2 wk after
Alpine delphinium
Delphinium elatum
15 Mar – 12 Apr
17 Apr
8-12 wk
7 Jun
12 Jun
0 wk
2 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
18 Apr – 2 May
16 May
6-8 wk
13 Jun
27 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
14 – 28 Apr
13 May
6-8 wk
9 Jun
24 Jun
0 wk
20 Jul
6 wk after
Wood sage
Salvia nemorosa
29 Mar – 12 Apr
7 Apr
8-10 wk
7 Jun
0 wk
2 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
4 Apr – 2 May
11 May
6-10 wk
13 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
4 – 18 Apr
5 May
8-10 wk
13 Jun
30 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
12 – 26 Apr
1 May
6-8 wk
7 Jun
12 Jun
0 wk
20 Jun
2 wk after