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Method
Rel. frost
Last spring frost (0°C) 18 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 101 days 18 Jun – 27 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)
30 Apr – 14 May
12 Jun
5-7 wk
18 Jun
17 Jul
0 wk
19 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
7 – 21 May
24 Jun
4-6 wk
18 Jun
22 Jul
0 wk
19 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
1 – 29 Apr
8-12 wk
24 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
30 Apr – 14 May
7 Jun
5-7 wk
18 Jun
12 Jul
0 wk
18 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
27 May – 3 Jun
4 Jun
4-5 wk
1 Jul
2 Jul
2 wk after
13 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
29 Jun – 6 Jul
3-4 wk
27 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
26 Mar – 23 Apr
28 Mar
8-12 wk
18 Jun
0 wk
18 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
9 Jun
12 Jun
1 wk before
9 Jun
1 wk before
Maize
Zea mays
Season too short
21 – 28 May
3-4 wk
18 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 May
1 Jul
3-4 wk
20 Jun
22 Jul
0 wk
1 Jul
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
18 Jun
2 Jul
0 wk
18 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
30 Apr – 14 May
7 Jun
5-7 wk
18 Jun
12 Jul
0 wk
18 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
Fleece
8 – 22 May
19 May
4-6 wk
19 Jun
0 wk
19 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Apr – 14 May
17 Jun
5-7 wk
18 Jun
22 Jul
0 wk
19 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
21 – 28 May
27 May
3-4 wk
18 Jun
0 wk
24 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
7 – 21 May
19 Jun
4-6 wk
18 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
21 – 28 May
6 Jul
3-4 wk
18 Jun
27 Jul
0 wk
19 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 May
19 Jun
4-6 wk
18 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
15 – 29 May
28 May
2-4 wk
12 Jun
1 wk before
12 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
9 Jun
12 Jun
1 wk before
9 Jun
1 wk before
Spinach
Spinacia oleracea
21 – 28 May
21 Jul
3-4 wk
18 Jun
11 Aug
0 wk
15 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
13 – 27 Jul
4-6 wk
24 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Season too short
21 May – 4 Jun
2-4 wk
18 Jun
0 wk
1 Jul
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
7 – 21 May
19 Jun
4-6 wk
18 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
21 – 28 May
21 Jun
3-4 wk
18 Jun
12 Jul
0 wk
19 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
Season too short
13 – 27 May
4-6 wk
24 Jun
1 wk after
Lemon balm
Melissa officinalis
9 – 23 Apr
17 May
8-10 wk
18 Jun
12 Jul
0 wk
13 Jul
4 wk after
Dill
Anethum graveolens
19 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
23 Apr – 7 May
31 May
6-8 wk
18 Jun
12 Jul
0 wk
19 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
26 Mar – 23 Apr
17 May
8-12 wk
18 Jun
12 Jul
0 wk
13 Jul
4 wk after
Coriander
Coriandrum sativum
18 Jun
11 Aug
0 wk
1 Jul
1 Aug
2 wk after
Garden sage
Salvia officinalis
11 – 25 Apr
2 May
8-10 wk
20 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
9 – 23 Apr
7 May
8-10 wk
18 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
23 Apr – 7 May
21 May
6-8 wk
18 Jun
2 Jul
0 wk
13 Jul
4 wk after
Parsley
Petroselinum crispum
23 Apr – 7 May
21 May
6-8 wk
18 Jun
2 Jul
0 wk
19 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
14 Mar – 11 Apr
3 Apr
10-14 wk
20 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
Season too short
27 May – 3 Jun
3-4 wk
24 Jun
1 wk after
Cornflower
Centaurea cyanus
18 Jun
12 Jul
0 wk
19 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
9 – 23 Apr
17 Apr
8-10 wk
18 Jun
0 wk
Sweet William
Dianthus barbatus
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
28 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
20 Jul
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
25 Apr – 9 May
25 Apr
6-8 wk
20 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
29 Apr – 27 May
24 May
4-8 wk
24 Jun
1 wk after
24 Jun
1 wk after
Foxglove
Digitalis purpurea
9 – 23 Apr
8-10 wk
18 Jun
0 wk
1 Jul
2 wk after
Busy lizzie
Impatiens walleriana
Greenhouse
1 – 29 Apr
6 Jun
8-12 wk
24 Jun
1 Aug
1 wk after
Creeping zinnia
Sanvitalia procumbens
Greenhouse
23 Apr – 7 May
11 May
6-8 wk
18 Jun
22 Jun
0 wk
Hyacinth bean
Dolichos lablab
Season too short
20 May – 3 Jun
4-6 wk
1 Jul
2 wk after
Chinese lantern
Physalis alkekengi
11 – 25 Apr
17 Apr
8-10 wk
20 Jun
0 wk
Love in a mist
Nigella damascena
18 Jun
27 Jun
0 wk
19 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Season too short
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
20 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
28 Mar – 25 Apr
17 Apr
8-12 wk
20 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
1 – 29 Apr
8-12 wk
24 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
1 – 29 Apr
8-12 wk
24 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
29 Apr – 13 May
6-8 wk
24 Jun
1 wk after
Corn poppy
Papaver rhoeas
18 Jun
12 Jul
0 wk
19 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
26 Mar – 23 Apr
7 May
8-12 wk
18 Jun
2 Jul
0 wk
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
15 – 29 Apr
27 Apr
8-10 wk
24 Jun
1 wk after
Sweet pea
Lathyrus odoratus
23 Apr – 14 May
28 May
5-8 wk
18 Jun
2 Jul
0 wk
Stock
Matthiola incana
23 Apr – 7 May
31 May
6-8 wk
18 Jun
12 Jul
0 wk
1 Jul
2 Jul
2 wk after
Wormwood
Artemisia absinthium
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
1 Jul
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
13 – 27 May
4-6 wk
24 Jun
1 wk after
Garden pansy
Viola × wittrockiana
9 – 23 Apr
17 May
8-10 wk
18 Jun
12 Jul
0 wk
28 Jun
2 Jul
1 wk after
Petunia
Petunia
Greenhouse
26 Mar – 23 Apr
17 Apr
8-12 wk
18 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
25 Apr – 9 May
1 May
6-8 wk
20 Jun
0 wk
31 Jul
6 wk after
Common zinnia
Zinnia elegans
Greenhouse
7 – 21 May
19 May
4-6 wk
18 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
20 May – 3 Jun
3-5 wk
24 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
13 – 27 May
4-6 wk
24 Jun
1 wk after
13 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
8 Apr – 6 May
8-12 wk
1 Jul
2 wk after
Bee balm
Monarda didyma
26 Mar – 23 Apr
17 Apr
8-12 wk
18 Jun
0 wk
13 Jul
4 wk after
Yarrow
Achillea millefolium
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
1 Jul
2 wk after
Safflower
Carthamus tinctorius
18 Jun
0 wk
19 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
23 Apr – 7 May
21 May
6-8 wk
18 Jun
2 Jul
0 wk
2 Jun
22 Jun
2 wk before
Bishop's flower
Ammi majus
7 – 21 May
4 Jun
4-6 wk
18 Jun
2 Jul
0 wk
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
1 – 15 Apr
10-12 wk
24 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
27 May – 3 Jun
11 Jun
3-4 wk
24 Jun
2 Jul
1 wk after
1 Jul
2 wk after
China aster
Callistephus chinensis
6 – 20 May
31 May
6-8 wk
1 Jul
12 Jul
2 wk after
31 Jul
6 wk after
Annual phlox
Phlox drummondii
Greenhouse
23 Apr – 7 May
11 May
6-8 wk
18 Jun
22 Jun
0 wk
1 Jul
2 wk after
Hollyhock
Alcea rosea
23 Apr – 7 May
6-8 wk
18 Jun
0 wk
1 Jul
2 wk after
Alpine delphinium
Delphinium elatum
26 Mar – 23 Apr
17 Apr
8-12 wk
18 Jun
0 wk
13 Jul
4 wk after
African marigold
Tagetes erecta
Greenhouse
23 Apr – 7 May
11 May
6-8 wk
18 Jun
22 Jun
0 wk
Black-eyed Susan
Rudbeckia hirta
25 Apr – 9 May
21 May
6-8 wk
20 Jun
2 Jul
0 wk
31 Jul
6 wk after
Wood sage
Salvia nemorosa
9 – 23 Apr
8-10 wk
18 Jun
0 wk
13 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
15 Apr – 13 May
6-10 wk
24 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
18 Jun
12 Jul
0 wk
19 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
15 – 29 Apr
7 May
8-10 wk
24 Jun
2 Jul
1 wk after
Water forget-me-not
Myosotis scorpioides
23 Apr – 7 May
1 May
6-8 wk
18 Jun
0 wk
1 Jul
2 wk after