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Method
Rel. frost
Last spring frost (0°C) 6 Jun Frost 3 of 4 years · 20 years of data
Frost-free season 105 days 6 Jun – 19 Sep
Probability that frost is over

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