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