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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 3 of 4 years · 20 years of data
Frost-free season 106 days 27 May – 10 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)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
28 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
28 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
5 – 12 May
3-4 wk
2 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
5 – 12 May
2 Jun
4-5 wk
9 Jun
30 Jun
2 wk after
21 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
4 Mar – 1 Apr
15 Mar
8-12 wk
27 May
0 wk
27 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
18 May
30 May
1 wk before
18 May
20 May
1 wk before
Maize
Zea mays
Season too short
29 Apr – 6 May
3-4 wk
27 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
29 Jun
3-4 wk
29 May
20 Jul
0 wk
9 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
1 Jul
0 wk
27 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Potato
Solanum tuberosum
Season too short
12 – 26 Apr
13 May
4-6 wk
24 May
10 Jun
0 wk
24 May
31 May
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
16 Jun
5-7 wk
27 May
21 Jul
0 wk
28 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
5 – 12 May
13 Jun
3-4 wk
2 Jun
4 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Greenhouse
29 Apr – 6 May
3-4 wk
27 May
0 wk
27 May
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
5 Jul
3-4 wk
27 May
26 Jul
0 wk
28 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
13 – 27 Apr
25 May
2-4 wk
11 May
8 Jun
2 wk before
11 May
29 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
18 May
30 May
1 wk before
18 May
20 May
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
20 Jul
3-4 wk
27 May
10 Aug
0 wk
24 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
21 Jun – 5 Jul
4-6 wk
2 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
1 – 15 Apr
6-8 wk
27 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
29 Apr – 13 May
15 Jun
2-4 wk
27 May
29 Jun
0 wk
9 Jun
19 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
20 Jun
3-4 wk
27 May
11 Jul
0 wk
28 May
1 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
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
1 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
16 May
8-10 wk
27 May
11 Jul
0 wk
21 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
28 May
20 Jul
0 wk
Wild chives
Allium schoenoprasum
1 – 15 Apr
30 May
6-8 wk
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Spearmint
Mentha spicata
4 Mar – 1 Apr
16 May
8-12 wk
27 May
11 Jul
0 wk
21 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
27 May
9 Aug
0 wk
9 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
1 May
8-10 wk
29 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
6 May
8-10 wk
27 May
1 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
21 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
28 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
20 Feb – 20 Mar
26 Mar
10-14 wk
29 May
4 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
5 – 12 May
29 May
3-4 wk
2 Jun
19 Jun
1 wk after
Cornflower
Centaurea cyanus
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Statice
Limonium sinuatum
Greenhouse
18 Mar – 1 Apr
3 May
8-10 wk
27 May
28 Jun
0 wk
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Greenhouse
1 – 15 Apr
17 May
6-8 wk
27 May
28 Jun
0 wk
28 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
3 – 17 Apr
9 May
6-8 wk
29 May
20 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
7 Apr – 5 May
2 Jun
4-8 wk
2 Jun
30 Jun
1 wk after
2 Jun
20 Jun
1 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
9 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
17 Mar – 14 Apr
9 Jun
8-12 wk
9 Jun
4 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
7 – 21 Apr
15 May
6-8 wk
2 Jun
26 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
20 Mar – 3 Apr
15 Apr
8-10 wk
29 May
10 Jun
0 wk
Love in a mist
Nigella damascena
27 May
26 Jun
0 wk
28 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
1 – 15 Apr
7 May
6-8 wk
27 May
18 Jun
0 wk
28 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
6 Mar – 3 Apr
15 Apr
8-12 wk
29 May
10 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
4 Mar – 1 Apr
17 Mar
8-12 wk
27 May
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
10 Mar – 7 Apr
14 Apr
8-12 wk
2 Jun
9 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
7 – 21 Apr
28 Apr
6-8 wk
2 Jun
9 Jun
1 wk after
Corn poppy
Papaver rhoeas
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
6 May
8-12 wk
27 May
1 Jul
0 wk
6 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
24 Mar – 7 Apr
13 May
8-10 wk
2 Jun
8 Jul
1 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
27 May
5-8 wk
27 May
1 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
30 May
6-8 wk
27 May
11 Jul
0 wk
9 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
21 Apr – 5 May
7 May
4-6 wk
2 Jun
4 Jun
1 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
16 May
8-10 wk
27 May
11 Jul
0 wk
6 Jun
1 Jul
1 wk after
Petunia
Petunia
Greenhouse
4 Mar – 1 Apr
3 May
8-12 wk
27 May
28 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
3 – 17 Apr
29 Apr
6-8 wk
29 May
10 Jun
0 wk
9 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
21 Apr – 5 May
22 May
4-6 wk
2 Jun
19 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
28 Apr – 12 May
29 May
3-5 wk
2 Jun
19 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
21 Apr – 5 May
23 May
4-6 wk
2 Jun
20 Jun
1 wk after
21 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
17 Mar – 14 Apr
14 May
8-12 wk
9 Jun
9 Jul
2 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
16 Apr
8-12 wk
27 May
11 Jun
0 wk
21 Jun
4 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Safflower
Carthamus tinctorius
27 May
11 Jun
0 wk
28 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
11 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
3 Jun
4-6 wk
27 May
1 Jul
0 wk
9 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
10 – 24 Mar
22 Mar
10-12 wk
2 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
5 – 12 May
10 Jun
3-4 wk
2 Jun
1 Jul
1 wk after
9 Jun
21 Jun
2 wk after
China aster
Callistephus chinensis
14 – 28 Apr
23 May
6-8 wk
9 Jun
4 Jul
2 wk after
9 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
1 – 15 Apr
15 May
6-8 wk
27 May
26 Jun
0 wk
21 Jun
4 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
16 Apr
8-12 wk
27 May
11 Jun
0 wk
21 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
7 – 21 Apr
15 May
6-8 wk
2 Jun
26 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
3 – 17 Apr
13 May
6-8 wk
29 May
24 Jun
0 wk
9 Jul
6 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
6 Apr
8-10 wk
27 May
1 Jun
0 wk
21 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
24 Mar – 21 Apr
8 May
6-10 wk
2 Jun
19 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
24 Mar – 7 Apr
5 May
8-10 wk
2 Jun
30 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after