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Method
Rel. frost
Last spring frost (0°C) 9 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 109 days 9 Jun – 26 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)
21 Apr – 5 May
15 Jun
5-7 wk
9 Jun
20 Jul
0 wk
13 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
27 Jun
4-6 wk
9 Jun
25 Jul
0 wk
13 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
10 Jun
5-7 wk
9 Jun
15 Jul
0 wk
9 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
18 – 25 May
3-4 wk
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
6 – 13 Jun
4-5 wk
11 Jul
5 wk after
28 Jul
7 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)
17 Mar – 14 Apr
31 Mar
8-12 wk
9 Jun
0 wk
30 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
13 Jun
15 Jun
1 wk after
13 Jun
1 wk after
Maize
Zea mays
Season too short
12 – 19 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
4 Jul
3-4 wk
11 Jun
25 Jul
0 wk
30 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
5 Jul
0 wk
9 Jun
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
10 Jun
5-7 wk
9 Jun
15 Jul
0 wk
9 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
14 – 28 May
30 May
4-6 wk
25 Jun
27 Jun
2 wk after
25 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
20 Jun
5-7 wk
9 Jun
25 Jul
0 wk
13 Jun
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
Greenhouse
18 – 25 May
3-4 wk
15 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 May
2 Jun
3-4 wk
11 Jun
23 Jun
0 wk
30 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
9 Jul
3-4 wk
9 Jun
30 Jul
0 wk
13 Jun
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 May
1 Jun
2-4 wk
9 Jun
15 Jun
0 wk
9 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 Jun
15 Jun
1 wk after
13 Jun
1 wk after
Spinach
Spinacia oleracea
12 – 19 May
24 Jul
3-4 wk
9 Jun
14 Aug
0 wk
5 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
11 – 25 Jul
4-6 wk
22 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Season too short
14 – 28 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
12 – 26 May
18 May
2-4 wk
9 Jun
0 wk
30 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
24 Jun
3-4 wk
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after

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
4 – 18 May
4-6 wk
15 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
20 May
8-10 wk
9 Jun
15 Jul
0 wk
14 Jul
5 wk after
Dill
Anethum graveolens
13 Jun
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
14 – 28 Apr
3 Jun
6-8 wk
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
17 Mar – 14 Apr
20 May
8-12 wk
9 Jun
15 Jul
0 wk
14 Jul
5 wk after
Coriander
Coriandrum sativum
9 Jun
14 Aug
0 wk
30 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
5 May
8-10 wk
11 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
10 May
8-10 wk
9 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
14 Jul
5 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
13 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
5 Mar – 2 Apr
6 Apr
10-14 wk
11 Jun
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
Season too short
18 – 25 May
3-4 wk
15 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Greenhouse
31 Mar – 14 Apr
13 Apr
8-10 wk
9 Jun
0 wk
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
25 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
14 – 28 Apr
27 Apr
6-8 wk
9 Jun
0 wk
20 Jul
6 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
16 – 30 Apr
20 Apr
6-8 wk
11 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
24 Apr – 22 May
23 May
4-8 wk
19 Jun
20 Jun
1 wk after
19 Jun
1 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
30 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
30 Mar – 27 Apr
12 May
8-12 wk
22 Jun
7 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
20 Apr – 4 May
20 Apr
6-8 wk
15 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Apr
20 Apr
8-10 wk
11 Jun
15 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
30 Jun
0 wk
13 Jun
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
17 Apr
6-8 wk
9 Jun
0 wk
20 Jul
6 wk after
Purple-top vervain
Verbena bonariensis
19 Mar – 16 Apr
20 Apr
8-12 wk
11 Jun
15 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
6-8 wk
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
10 May
8-12 wk
9 Jun
5 Jul
0 wk
25 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Greenhouse
6 – 20 Apr
23 Apr
8-10 wk
15 Jun
18 Jun
1 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
31 May
5-8 wk
9 Jun
5 Jul
0 wk
Stock
Matthiola incana
14 – 28 Apr
3 Jun
6-8 wk
9 Jun
15 Jul
0 wk
30 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
0 wk
30 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
4 – 18 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
20 May
8-10 wk
9 Jun
15 Jul
0 wk
25 Jun
5 Jul
2 wk after
Petunia
Petunia
Greenhouse
17 Mar – 14 Apr
13 Apr
8-12 wk
9 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
16 – 30 Apr
4 May
6-8 wk
11 Jun
15 Jun
0 wk
28 Jul
7 wk after
Common zinnia
Zinnia elegans
Greenhouse
28 Apr – 12 May
14 May
4-6 wk
9 Jun
11 Jun
0 wk
Common morning glory
Ipomoea purpurea
Season too short
11 – 25 May
3-5 wk
15 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
4 – 18 May
4 May
4-6 wk
15 Jun
1 wk after
14 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
30 Mar – 27 Apr
16 Apr
8-12 wk
22 Jun
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
20 Apr
8-12 wk
9 Jun
15 Jun
0 wk
14 Jul
5 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Safflower
Carthamus tinctorius
9 Jun
15 Jun
0 wk
13 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
22 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
7 Jun
4-6 wk
9 Jun
5 Jul
0 wk
30 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
14 Jun
3-4 wk
22 Jun
5 Jul
2 wk after
14 Jul
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
3 Jun
6-8 wk
22 Jun
15 Jul
2 wk after
28 Jul
7 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
20 Apr
6-8 wk
9 Jun
0 wk
14 Jul
5 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
20 Apr
8-12 wk
9 Jun
15 Jun
0 wk
14 Jul
5 wk after
African marigold
Tagetes erecta
Fleece
20 Apr – 4 May
20 Apr
6-8 wk
15 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
24 May
6-8 wk
11 Jun
5 Jul
0 wk
28 Jul
7 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
10 Apr
8-10 wk
9 Jun
0 wk
14 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Season too short
6 Apr – 4 May
10 Apr
6-10 wk
15 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Apr
3 May
8-10 wk
22 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
0 wk
30 Jun
3 wk after