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Method
Rel. frost
Last spring frost (0°C) 6 Jun Normal year · 20 years of data
Frost-free season 81 days 6 Jun – 26 Aug
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
11 Jun
5-7 wk
6 Jun
16 Jul
0 wk
7 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
25 Apr – 9 May
23 Jun
4-6 wk
6 Jun
21 Jul
0 wk
7 Jun
11 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
25 May
3-4 wk
12 Jun
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
8 – 15 May
2 Jun
4-5 wk
12 Jun
30 Jun
1 wk after
19 Jun
20 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)
Greenhouse
14 Mar – 11 Apr
27 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
15 May
3-4 wk
6 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
11 – 18 May
11 Jun
3-4 wk
8 Jun
2 Jul
0 wk
19 Jun
22 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 Jun
30 Jun
0 wk
6 Jun
20 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
5 – 19 May
11 May
4-6 wk
16 Jun
1 wk after
16 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Apr – 2 May
15 Jun
5-7 wk
6 Jun
20 Jul
0 wk
7 Jun
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
22 – 29 May
30 May
3-4 wk
19 Jun
20 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
9 – 16 May
24 May
3-4 wk
6 Jun
14 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
4 Jul
3-4 wk
6 Jun
25 Jul
0 wk
7 Jun
15 Jul
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
12 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
20 Jul
3-4 wk
6 Jun
10 Aug
0 wk
3 Jun
31 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
24 Apr
6-8 wk
6 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
15 – 29 May
1 Jun
2-4 wk
12 Jun
15 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
19 Jun
3-4 wk
6 Jun
10 Jul
0 wk
7 Jun
30 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
24 May
4-6 wk
12 Jun
21 Jun
1 wk after
Lemon balm
Melissa officinalis
28 Mar – 11 Apr
15 May
8-10 wk
6 Jun
10 Jul
0 wk
1 Jul
4 wk after
Dill
Anethum graveolens
7 Jun
2 Jul
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
16 May
8-12 wk
6 Jun
11 Jul
0 wk
1 Jul
1 Jul
4 wk after
Coriander
Coriandrum sativum
6 Jun
22 Jul
0 wk
19 Jun
12 Jul
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
20 May
6-8 wk
6 Jun
1 Jul
0 wk
1 Jul
4 wk after
Parsley
Petroselinum crispum
11 – 25 Apr
20 May
6-8 wk
6 Jun
1 Jul
0 wk
7 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
28 Feb – 28 Mar
1 Apr
10-14 wk
6 Jun
10 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
31 May
3-4 wk
12 Jun
21 Jun
1 wk after
Cornflower
Centaurea cyanus
6 Jun
11 Jul
0 wk
7 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
3 – 17 Apr
20 Apr
8-10 wk
12 Jun
15 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
4 May
6-8 wk
12 Jun
15 Jun
1 wk after
26 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
22 Apr – 6 May
30 Apr
6-8 wk
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
24 Apr – 22 May
23 May
4-8 wk
19 Jun
20 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
26 May
8-12 wk
8 Jul
21 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
24 Apr – 8 May
7 May
6-8 wk
19 Jun
2 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
15 Apr
8-10 wk
6 Jun
10 Jun
0 wk
Love in a mist
Nigella damascena
6 Jun
25 Jun
0 wk
7 Jun
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
17 Apr – 1 May
24 Apr
6-8 wk
12 Jun
1 wk after
26 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
Fleece
14 Mar – 11 Apr
15 Apr
8-12 wk
6 Jun
10 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
14 Mar – 11 Apr
17 Mar
8-12 wk
6 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
20 Mar – 17 Apr
16 Apr
8-12 wk
12 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
17 Apr – 1 May
30 Apr
6-8 wk
12 Jun
1 wk after
Corn poppy
Papaver rhoeas
6 Jun
10 Jul
0 wk
7 Jun
30 Jun
0 wk
Snapdragon
Antirrhinum majus
14 Mar – 11 Apr
5 May
8-12 wk
6 Jun
30 Jun
0 wk
16 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
10 – 24 Apr
30 Apr
8-10 wk
19 Jun
25 Jun
2 wk after
Sweet pea
Lathyrus odoratus
11 Apr – 2 May
27 May
5-8 wk
6 Jun
1 Jul
0 wk
Stock
Matthiola incana
11 – 25 Apr
29 May
6-8 wk
6 Jun
10 Jul
0 wk
19 Jun
30 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
Greenhouse
1 – 15 May
9 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
20 Apr
8-12 wk
12 Jun
15 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
Fleece
11 – 25 Apr
29 Apr
6-8 wk
6 Jun
10 Jun
0 wk
1 Jul
4 wk after
Common zinnia
Zinnia elegans
Fleece
1 – 15 May
24 May
4-6 wk
12 Jun
21 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
8 – 22 May
31 May
3-5 wk
12 Jun
21 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
1 – 15 May
23 May
4-6 wk
12 Jun
20 Jun
1 wk after
1 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
27 Mar – 24 Apr
16 May
8-12 wk
19 Jun
11 Jul
2 wk after
Bee balm
Monarda didyma
14 Mar – 11 Apr
15 Apr
8-12 wk
6 Jun
10 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
11 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
2 Jun
4-6 wk
6 Jun
30 Jun
0 wk
19 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
20 Mar – 3 Apr
22 Mar
10-12 wk
12 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
15 – 22 May
9 Jun
3-4 wk
12 Jun
30 Jun
1 wk after
19 Jun
20 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
17 Apr – 1 May
29 May
6-8 wk
12 Jun
10 Jul
1 wk after
1 Jul
4 wk after
Annual phlox
Phlox drummondii
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
1 wk after
19 Jul
6 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
15 Apr
8-12 wk
6 Jun
10 Jun
0 wk
1 Jul
4 wk after
African marigold
Tagetes erecta
24 Apr – 8 May
7 May
6-8 wk
19 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
13 – 27 Apr
23 Apr
6-8 wk
8 Jun
0 wk
19 Jul
6 wk after
Wood sage
Salvia nemorosa
28 Mar – 11 Apr
5 Apr
8-10 wk
6 Jun
0 wk
1 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
3 Apr – 1 May
10 May
6-10 wk
12 Jun
21 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
6 Jun
10 Jul
0 wk
7 Jun
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
3 – 17 Apr
17 Apr
8-10 wk
12 Jun
12 Jun
1 wk after
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