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Method
Rel. frost
Last spring frost (0°C) 13 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 100 days 13 Jun – 21 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)
25 Apr – 9 May
12 Jun
5-7 wk
13 Jun
17 Jul
0 wk
14 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 May
24 Jun
4-6 wk
13 Jun
22 Jul
0 wk
14 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
27 Mar – 24 Apr
8-12 wk
19 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Apr – 9 May
7 Jun
5-7 wk
13 Jun
12 Jul
0 wk
13 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
22 – 29 May
1 Jun
3-4 wk
19 Jun
22 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
22 – 29 May
4 Jun
4-5 wk
26 Jun
2 Jul
2 wk after
8 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
24 Jun – 1 Jul
3-4 wk
22 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
21 Mar – 18 Apr
28 Mar
8-12 wk
13 Jun
0 wk
13 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
4 Jun
12 Jun
1 wk before
4 Jun
1 wk before
Maize
Zea mays
Greenhouse
16 – 23 May
22 May
3-4 wk
13 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 May
1 Jul
3-4 wk
15 Jun
22 Jul
0 wk
26 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 Jun
2 Jul
0 wk
13 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Apr – 9 May
7 Jun
5-7 wk
13 Jun
12 Jul
0 wk
13 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
29 Apr – 13 May
21 May
4-6 wk
10 Jun
18 Jun
0 wk
10 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Apr – 9 May
17 Jun
5-7 wk
13 Jun
22 Jul
0 wk
14 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
22 – 29 May
21 Jun
3-4 wk
19 Jun
12 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
16 – 23 May
3-4 wk
13 Jun
0 wk
19 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
16 – 23 May
6 Jul
3-4 wk
13 Jun
27 Jul
0 wk
14 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
10 – 24 May
24 May
2-4 wk
7 Jun
7 Jun
1 wk before
7 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
4 Jun
12 Jun
1 wk before
4 Jun
1 wk before
Spinach
Spinacia oleracea
16 – 23 May
21 Jul
3-4 wk
13 Jun
11 Aug
0 wk
10 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
8 – 22 Jul
4-6 wk
19 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
18 Apr – 2 May
1 May
6-8 wk
13 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
22 May – 5 Jun
8 Jun
2-4 wk
19 Jun
22 Jun
1 wk after
8 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 May
19 Jun
4-6 wk
13 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
16 – 23 May
21 Jun
3-4 wk
13 Jun
12 Jul
0 wk
14 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
8 – 22 May
30 May
4-6 wk
19 Jun
27 Jun
1 wk after
Lemon balm
Melissa officinalis
4 – 18 Apr
17 May
8-10 wk
13 Jun
12 Jul
0 wk
8 Jul
4 wk after
Dill
Anethum graveolens
14 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
18 Apr – 2 May
31 May
6-8 wk
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
21 Mar – 18 Apr
17 May
8-12 wk
13 Jun
12 Jul
0 wk
8 Jul
4 wk after
Coriander
Coriandrum sativum
13 Jun
11 Aug
0 wk
26 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
6 – 20 Apr
2 May
8-10 wk
15 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
4 – 18 Apr
7 May
8-10 wk
13 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
8 Jul
4 wk after
Parsley
Petroselinum crispum
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
14 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
9 Mar – 6 Apr
1 Apr
10-14 wk
15 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
22 – 29 May
6 Jun
3-4 wk
19 Jun
27 Jun
1 wk after
Cornflower
Centaurea cyanus
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
10 – 24 Apr
29 Apr
8-10 wk
19 Jun
24 Jun
1 wk after
Sweet William
Dianthus barbatus
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
23 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
24 Apr – 8 May
13 May
6-8 wk
19 Jun
24 Jun
1 wk after
2 Aug
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
20 Apr – 4 May
19 May
6-8 wk
15 Jun
30 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
24 Apr – 22 May
4 Jun
4-8 wk
19 Jun
2 Jul
1 wk after
19 Jun
22 Jun
1 wk after
Foxglove
Digitalis purpurea
4 – 18 Apr
8-10 wk
13 Jun
0 wk
26 Jun
2 wk after
Busy lizzie
Impatiens walleriana
22 Apr – 20 May
2 Jun
8-12 wk
15 Jul
28 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
24 Apr – 8 May
23 May
6-8 wk
19 Jun
4 Jul
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
15 – 29 May
4-6 wk
26 Jun
2 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Apr
17 Apr
8-10 wk
15 Jun
0 wk
Love in a mist
Nigella damascena
13 Jun
27 Jun
0 wk
14 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
24 Apr – 8 May
3 May
6-8 wk
19 Jun
1 wk after
2 Aug
7 wk after
Purple-top vervain
Verbena bonariensis
23 Mar – 20 Apr
17 Apr
8-12 wk
15 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
21 Mar – 18 Apr
8-12 wk
13 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
27 Mar – 24 Apr
22 Apr
8-12 wk
19 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
24 Apr – 8 May
6 May
6-8 wk
19 Jun
1 wk after
Corn poppy
Papaver rhoeas
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
21 Mar – 18 Apr
7 May
8-12 wk
13 Jun
2 Jul
0 wk
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
10 – 24 Apr
17 May
8-10 wk
19 Jun
12 Jul
1 wk after
Sweet pea
Lathyrus odoratus
18 Apr – 9 May
28 May
5-8 wk
13 Jun
2 Jul
0 wk
Stock
Matthiola incana
18 Apr – 2 May
31 May
6-8 wk
13 Jun
12 Jul
0 wk
26 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
18 Apr – 2 May
1 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
8 – 22 May
15 May
4-6 wk
19 Jun
1 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Apr
17 May
8-10 wk
13 Jun
12 Jul
0 wk
23 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
27 Mar – 24 Apr
29 Apr
8-12 wk
19 Jun
24 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Apr – 4 May
1 May
6-8 wk
15 Jun
0 wk
26 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
8 – 22 May
30 May
4-6 wk
19 Jun
27 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
15 – 29 May
6 Jun
3-5 wk
19 Jun
27 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
8 – 22 May
2 Jun
4-6 wk
19 Jun
30 Jun
1 wk after
8 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
3 Apr – 1 May
22 May
8-12 wk
26 Jun
17 Jul
2 wk after
Bee balm
Monarda didyma
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
Yarrow
Achillea millefolium
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Safflower
Carthamus tinctorius
13 Jun
0 wk
14 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
0 wk
28 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
2 – 16 May
4 Jun
4-6 wk
13 Jun
2 Jul
0 wk
26 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
27 Mar – 10 Apr
1 Apr
10-12 wk
19 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
22 – 29 May
11 Jun
3-4 wk
19 Jun
2 Jul
1 wk after
26 Jun
2 wk after
China aster
Callistephus chinensis
1 – 15 May
29 May
6-8 wk
26 Jun
10 Jul
2 wk after
26 Jul
6 wk after
Annual phlox
Phlox drummondii
24 Apr – 8 May
11 May
6-8 wk
19 Jun
22 Jun
1 wk after
26 Jul
6 wk after
Hollyhock
Alcea rosea
18 Apr – 2 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after
Alpine delphinium
Delphinium elatum
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
0 wk
8 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
24 Apr – 8 May
23 May
6-8 wk
19 Jun
4 Jul
1 wk after
Black-eyed Susan
Rudbeckia hirta
20 Apr – 4 May
19 May
6-8 wk
15 Jun
30 Jun
0 wk
26 Jul
6 wk after
Wood sage
Salvia nemorosa
4 – 18 Apr
7 Apr
8-10 wk
13 Jun
0 wk
8 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
10 Apr – 8 May
16 May
6-10 wk
19 Jun
27 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
13 Jun
12 Jul
0 wk
14 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
10 – 24 Apr
7 May
8-10 wk
19 Jun
2 Jul
1 wk after
Water forget-me-not
Myosotis scorpioides
18 Apr – 2 May
1 May
6-8 wk
13 Jun
0 wk
26 Jun
2 wk after