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Method
Rel. frost
Last spring frost (0°C) 5 Jun Normal year · 20 years of data
Frost-free season 87 days 5 Jun – 31 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)
17 Apr – 1 May
12 Jun
5-7 wk
5 Jun
17 Jul
0 wk
6 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
24 Apr – 8 May
24 Jun
4-6 wk
5 Jun
22 Jul
0 wk
6 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
19 Mar – 16 Apr
20 Mar
8-12 wk
11 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Apr – 1 May
7 Jun
5-7 wk
5 Jun
12 Jul
0 wk
5 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
14 – 21 May
29 May
3-4 wk
11 Jun
19 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
7 – 14 May
4 Jun
4-5 wk
11 Jun
2 Jul
1 wk after
18 Jun
22 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
13 Mar – 10 Apr
26 Mar
8-12 wk
5 Jun
0 wk
5 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
6 Jun
0 wk
6 Jun
0 wk
Maize
Zea mays
Greenhouse
8 – 15 May
19 May
3-4 wk
5 Jun
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
14 Jun
3-4 wk
7 Jun
5 Jul
0 wk
18 Jun
25 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
5 Jun
2 Jul
0 wk
5 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Apr – 1 May
7 Jun
5-7 wk
5 Jun
12 Jul
0 wk
5 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
4 – 18 May
8 May
4-6 wk
15 Jun
1 wk after
15 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Apr – 1 May
17 Jun
5-7 wk
5 Jun
22 Jul
0 wk
6 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
21 – 28 May
3 Jun
3-4 wk
18 Jun
24 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
14 May
3-4 wk
7 Jun
0 wk
18 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Apr – 8 May
19 Jun
4-6 wk
5 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 May
6 Jul
3-4 wk
5 Jun
27 Jul
0 wk
6 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Apr – 8 May
19 Jun
4-6 wk
5 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 May
14 May
2-4 wk
5 Jun
0 wk
5 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
6 Jun
0 wk
6 Jun
0 wk
Spinach
Spinacia oleracea
8 – 15 May
21 Jul
3-4 wk
5 Jun
11 Aug
0 wk
2 Jun
1 Aug
0 wk
Sweet potato
Ipomoea batatas
30 Jun – 14 Jul
4-6 wk
11 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
10 – 24 Apr
28 Apr
6-8 wk
5 Jun
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
14 – 28 May
5 Jun
2-4 wk
11 Jun
19 Jun
1 wk after
30 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Apr – 8 May
19 Jun
4-6 wk
5 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 May
21 Jun
3-4 wk
5 Jun
12 Jul
0 wk
6 Jun
2 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
30 Apr – 14 May
25 May
4-6 wk
11 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
27 Mar – 10 Apr
17 May
8-10 wk
5 Jun
12 Jul
0 wk
30 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
6 Jun
5 Jul
0 wk
Wild chives
Allium schoenoprasum
10 – 24 Apr
31 May
6-8 wk
5 Jun
12 Jul
0 wk
6 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
13 Mar – 10 Apr
17 May
8-12 wk
5 Jun
12 Jul
0 wk
30 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
5 Jun
25 Jul
0 wk
18 Jun
15 Jul
2 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
2 May
8-10 wk
7 Jun
27 Jun
0 wk
Common thyme
Thymus vulgaris
27 Mar – 10 Apr
7 May
8-10 wk
5 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Apr
21 May
6-8 wk
5 Jun
2 Jul
0 wk
30 Jun
4 wk after
Parsley
Petroselinum crispum
10 – 24 Apr
21 May
6-8 wk
5 Jun
2 Jul
0 wk
6 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
27 Feb – 27 Mar
31 Mar
10-14 wk
5 Jun
9 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
14 – 21 May
1 Jun
3-4 wk
11 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
5 Jun
12 Jul
0 wk
6 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
Fleece
2 – 16 Apr
22 Apr
8-10 wk
11 Jun
17 Jun
1 wk after
Sweet William
Dianthus barbatus
10 – 24 Apr
6-8 wk
5 Jun
0 wk
15 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
16 – 30 Apr
6 May
6-8 wk
11 Jun
17 Jun
1 wk after
25 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
21 Apr – 5 May
1 May
6-8 wk
16 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
23 Apr – 21 May
28 May
4-8 wk
18 Jun
25 Jun
2 wk after
18 Jun
2 wk after
Foxglove
Digitalis purpurea
27 Mar – 10 Apr
8-10 wk
5 Jun
0 wk
18 Jun
2 wk after
Busy lizzie
Impatiens walleriana
14 Apr – 12 May
30 May
8-12 wk
7 Jul
25 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
23 Apr – 7 May
7 May
6-8 wk
18 Jun
18 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
7 – 21 May
4-6 wk
18 Jun
2 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
31 Mar
8-10 wk
7 Jun
0 wk
Love in a mist
Nigella damascena
5 Jun
27 Jun
0 wk
6 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
16 – 30 Apr
26 Apr
6-8 wk
11 Jun
1 wk after
25 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
31 Mar
8-12 wk
7 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
13 Mar – 10 Apr
18 Mar
8-12 wk
5 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
19 Mar – 16 Apr
17 Apr
8-12 wk
11 Jun
12 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
16 – 30 Apr
1 May
6-8 wk
11 Jun
12 Jun
1 wk after
Corn poppy
Papaver rhoeas
5 Jun
12 Jul
0 wk
6 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
13 Mar – 10 Apr
7 May
8-12 wk
5 Jun
2 Jul
0 wk
15 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
9 – 23 Apr
2 May
8-10 wk
18 Jun
27 Jun
2 wk after
Sweet pea
Lathyrus odoratus
10 Apr – 1 May
28 May
5-8 wk
5 Jun
2 Jul
0 wk
Stock
Matthiola incana
10 – 24 Apr
31 May
6-8 wk
5 Jun
12 Jul
0 wk
18 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
10 – 24 Apr
1 May
6-8 wk
5 Jun
12 Jun
0 wk
18 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
30 Apr – 14 May
10 May
4-6 wk
11 Jun
1 wk after
Garden pansy
Viola × wittrockiana
27 Mar – 10 Apr
17 May
8-10 wk
5 Jun
12 Jul
0 wk
15 Jun
2 Jul
1 wk after
Petunia
Petunia
Fleece
19 Mar – 16 Apr
22 Apr
8-12 wk
11 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
14 Apr
6-8 wk
7 Jun
0 wk
18 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
30 Apr – 14 May
25 May
4-6 wk
11 Jun
22 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
7 – 21 May
1 Jun
3-5 wk
11 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
30 Apr – 14 May
28 May
4-6 wk
11 Jun
25 Jun
1 wk after
30 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
26 Mar – 23 Apr
17 May
8-12 wk
18 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
13 Mar – 10 Apr
17 Apr
8-12 wk
5 Jun
12 Jun
0 wk
30 Jun
4 wk after
Yarrow
Achillea millefolium
10 – 24 Apr
6-8 wk
5 Jun
0 wk
18 Jun
2 wk after
Safflower
Carthamus tinctorius
5 Jun
12 Jun
0 wk
6 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Apr
21 May
6-8 wk
5 Jun
2 Jul
0 wk
20 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
24 Apr – 8 May
4 Jun
4-6 wk
5 Jun
2 Jul
0 wk
18 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
19 Mar – 2 Apr
27 Mar
10-12 wk
11 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
14 – 21 May
8 Jun
3-4 wk
11 Jun
29 Jun
1 wk after
18 Jun
19 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
16 – 30 Apr
28 May
6-8 wk
11 Jun
9 Jul
1 wk after
30 Jun
4 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
1 wk after
18 Jul
6 wk after
Hollyhock
Alcea rosea
10 – 24 Apr
6-8 wk
5 Jun
0 wk
18 Jun
2 wk after
Alpine delphinium
Delphinium elatum
13 Mar – 10 Apr
17 Apr
8-12 wk
5 Jun
12 Jun
0 wk
30 Jun
4 wk after
African marigold
Tagetes erecta
23 Apr – 7 May
7 May
6-8 wk
18 Jun
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
25 Apr
6-8 wk
7 Jun
0 wk
18 Jul
6 wk after
Wood sage
Salvia nemorosa
27 Mar – 10 Apr
7 Apr
8-10 wk
5 Jun
0 wk
30 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
2 – 30 Apr
11 May
6-10 wk
11 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
5 Jun
9 Jul
0 wk
6 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
2 – 16 Apr
20 Apr
8-10 wk
11 Jun
15 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
10 – 24 Apr
1 May
6-8 wk
5 Jun
12 Jun
0 wk
18 Jun
2 wk after