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Method
Rel. frost
Last spring frost (0°C) 7 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 114 days 7 Jun – 29 Sep
Probability that frost is over

90% = 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
26 Mar – 23 Apr
8-12 wk
18 Jun
2 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
Season too short
21 – 28 May
3-4 wk
18 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
6 – 13 Jun
4-5 wk
11 Jul
5 wk after
20 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
15 Mar – 12 Apr
28 Mar
8-12 wk
7 Jun
0 wk
13 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
8 Jun
8 Jun
0 wk
8 Jun
0 wk
Maize
Zea mays
Season too short
14 – 21 May
3-4 wk
11 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 May
1 Jul
3-4 wk
13 Jun
22 Jul
1 wk after
20 Jun
12 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
6 – 20 May
22 May
4-6 wk
17 Jun
19 Jun
1 wk after
17 Jun
1 wk after
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
21 – 28 May
25 May
3-4 wk
18 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 May
1 Jun
3-4 wk
13 Jun
22 Jun
1 wk after
20 Jun
2 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)
10 – 24 May
29 May
2-4 wk
7 Jun
12 Jun
0 wk
7 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Jun
8 Jun
0 wk
8 Jun
0 wk
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
Season too short
16 – 30 Apr
6-8 wk
11 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
14 – 28 May
27 May
2-4 wk
11 Jun
1 wk after
20 Jun
2 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
7 – 21 May
4-6 wk
18 Jun
2 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
22 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
11 Aug
0 wk
20 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
4 – 18 Apr
2 May
8-10 wk
13 Jun
27 Jun
1 wk after
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
7 Mar – 4 Apr
3 Apr
10-14 wk
13 Jun
1 wk after

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
21 – 28 May
3-4 wk
18 Jun
2 wk after
Cornflower
Centaurea cyanus
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
9 – 23 Apr
9 Apr
8-10 wk
18 Jun
2 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
23 Apr – 7 May
23 Apr
6-8 wk
18 Jun
2 wk after
27 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
18 Apr – 2 May
25 Apr
6-8 wk
13 Jun
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
18 Apr – 16 May
26 May
4-8 wk
13 Jun
23 Jun
1 wk after
13 Jun
13 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
Fleece
4 Apr – 2 May
21 May
8-12 wk
27 Jun
16 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
23 Apr – 7 May
3 May
6-8 wk
18 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
16 – 30 May
4-6 wk
27 Jun
3 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Apr
17 Apr
8-10 wk
13 Jun
1 wk after
Love in a mist
Nigella damascena
7 Jun
27 Jun
0 wk
8 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
16 – 30 Apr
21 Apr
6-8 wk
11 Jun
1 wk after
9 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
21 Mar – 18 Apr
17 Apr
8-12 wk
13 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
26 Mar – 23 Apr
8-12 wk
18 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
26 Mar – 23 Apr
26 Mar
8-12 wk
18 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
2 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
Fleece
18 Apr – 2 May
19 Apr
8-10 wk
27 Jun
3 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
Season too short
7 – 21 May
4-6 wk
18 Jun
2 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
26 Mar – 23 Apr
9 Apr
8-12 wk
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Apr – 2 May
1 May
6-8 wk
13 Jun
1 wk after
20 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
7 – 21 May
4-6 wk
18 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
14 – 28 May
3-5 wk
18 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
7 – 21 May
9 May
4-6 wk
18 Jun
2 wk after
2 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
4 Apr – 2 May
25 Apr
8-12 wk
27 Jun
3 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
26 Mar – 9 Apr
10-12 wk
18 Jun
2 wk after
Sunflower
Helianthus annuus
30 May – 6 Jun
11 Jun
3-4 wk
27 Jun
2 Jul
3 wk after
2 Jul
4 wk after
China aster
Callistephus chinensis
2 – 16 May
31 May
6-8 wk
27 Jun
12 Jul
3 wk after
20 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
16 – 30 Apr
3 May
6-8 wk
11 Jun
14 Jun
1 wk after
2 Jul
4 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
23 Apr – 7 May
3 May
6-8 wk
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
18 Apr – 2 May
21 May
6-8 wk
13 Jun
2 Jul
1 wk after
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
9 Apr – 7 May
19 Apr
6-10 wk
18 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
7 Jun
12 Jul
0 wk
8 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
18 Apr – 2 May
7 May
8-10 wk
27 Jun
2 Jul
3 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