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Method
Rel. frost
Last spring frost (0°C) 7 Jun Normal year · 20 years of data
Frost-free season 80 days 7 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)
19 Apr – 3 May
11 Jun
5-7 wk
7 Jun
16 Jul
0 wk
8 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
26 Apr – 10 May
23 Jun
4-6 wk
7 Jun
21 Jul
0 wk
8 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
21 Mar – 18 Apr
8-12 wk
13 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
19 Apr – 3 May
6 Jun
5-7 wk
7 Jun
11 Jul
0 wk
7 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
16 – 23 May
24 May
3-4 wk
13 Jun
14 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
16 – 23 May
24 May
4-5 wk
20 Jun
21 Jun
2 wk after
2 Jul
4 wk after
Butter bean
Phaseolus lunatus
Season too short
18 – 25 Jun
3-4 wk
16 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
15 Mar – 12 Apr
27 Mar
8-12 wk
7 Jun
0 wk
7 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
8 Jun
0 wk
8 Jun
0 wk
Maize
Zea mays
Greenhouse
10 – 17 May
14 May
3-4 wk
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
12 – 19 May
20 Jun
3-4 wk
9 Jun
11 Jul
0 wk
20 Jun
1 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Jun
1 Jul
0 wk
7 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
19 Apr – 3 May
6 Jun
5-7 wk
7 Jun
11 Jul
0 wk
7 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
6 – 20 May
4-6 wk
17 Jun
1 wk after
17 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
19 Apr – 3 May
16 Jun
5-7 wk
7 Jun
21 Jul
0 wk
8 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
23 – 30 May
29 May
3-4 wk
20 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
10 – 17 May
20 May
3-4 wk
7 Jun
10 Jun
0 wk
13 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
26 Apr – 10 May
18 Jun
4-6 wk
7 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 May
5 Jul
3-4 wk
7 Jun
26 Jul
0 wk
8 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
26 Apr – 10 May
18 Jun
4-6 wk
7 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
10 – 24 May
12 May
2-4 wk
7 Jun
0 wk
7 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Jun
0 wk
8 Jun
0 wk
Spinach
Spinacia oleracea
10 – 17 May
20 Jul
3-4 wk
7 Jun
10 Aug
0 wk
4 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
2 – 16 Jul
4-6 wk
13 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
12 – 26 Apr
23 Apr
6-8 wk
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
16 – 30 May
31 May
2-4 wk
13 Jun
14 Jun
1 wk after
2 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
26 Apr – 10 May
18 Jun
4-6 wk
7 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 May
20 Jun
3-4 wk
7 Jun
11 Jul
0 wk
8 Jun
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
2 – 16 May
24 May
4-6 wk
13 Jun
21 Jun
1 wk after
Lemon balm
Melissa officinalis
29 Mar – 12 Apr
16 May
8-10 wk
7 Jun
11 Jul
0 wk
2 Jul
4 wk after
Dill
Anethum graveolens
8 Jun
11 Jul
0 wk
Wild chives
Allium schoenoprasum
12 – 26 Apr
30 May
6-8 wk
7 Jun
11 Jul
0 wk
8 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
15 Mar – 12 Apr
16 May
8-12 wk
7 Jun
11 Jul
0 wk
2 Jul
4 wk after
Coriander
Coriandrum sativum
7 Jun
31 Jul
0 wk
20 Jun
21 Jul
2 wk after
Garden sage
Salvia officinalis
31 Mar – 14 Apr
1 May
8-10 wk
9 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
29 Mar – 12 Apr
6 May
8-10 wk
7 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
12 – 26 Apr
20 May
6-8 wk
7 Jun
1 Jul
0 wk
2 Jul
4 wk after
Parsley
Petroselinum crispum
12 – 26 Apr
20 May
6-8 wk
7 Jun
1 Jul
0 wk
8 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
1 – 29 Mar
31 Mar
10-14 wk
7 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
16 – 23 May
31 May
3-4 wk
13 Jun
21 Jun
1 wk after
Cornflower
Centaurea cyanus
7 Jun
11 Jul
0 wk
8 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
4 – 18 Apr
19 Apr
8-10 wk
13 Jun
14 Jun
1 wk after
Sweet William
Dianthus barbatus
12 – 26 Apr
6-8 wk
7 Jun
0 wk
17 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
18 Apr – 2 May
3 May
6-8 wk
13 Jun
14 Jun
1 wk after
27 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
23 Apr – 7 May
30 Apr
6-8 wk
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
25 Apr – 23 May
18 May
4-8 wk
20 Jun
2 wk after
20 Jun
2 wk after
Foxglove
Digitalis purpurea
29 Mar – 12 Apr
8-10 wk
7 Jun
0 wk
20 Jun
2 wk after
Busy lizzie
Impatiens walleriana
16 Apr – 14 May
25 May
8-12 wk
9 Jul
20 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
18 Apr – 2 May
13 May
6-8 wk
13 Jun
24 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
9 – 23 May
4-6 wk
20 Jun
2 wk after
Chinese lantern
Physalis alkekengi
31 Mar – 14 Apr
6 Apr
8-10 wk
9 Jun
0 wk
Love in a mist
Nigella damascena
7 Jun
26 Jun
0 wk
8 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
18 Apr – 2 May
23 Apr
6-8 wk
13 Jun
1 wk after
27 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
17 Mar – 14 Apr
6 Apr
8-12 wk
9 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
15 Mar – 12 Apr
17 Mar
8-12 wk
7 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
21 Mar – 18 Apr
16 Apr
8-12 wk
13 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
18 Apr – 2 May
30 Apr
6-8 wk
13 Jun
1 wk after
Corn poppy
Papaver rhoeas
7 Jun
11 Jul
0 wk
8 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
15 Mar – 12 Apr
6 May
8-12 wk
7 Jun
1 Jul
0 wk
17 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
11 – 25 Apr
29 Apr
8-10 wk
20 Jun
24 Jun
2 wk after
Sweet pea
Lathyrus odoratus
12 Apr – 3 May
27 May
5-8 wk
7 Jun
1 Jul
0 wk
Stock
Matthiola incana
12 – 26 Apr
30 May
6-8 wk
7 Jun
11 Jul
0 wk
20 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
12 – 26 Apr
30 Apr
6-8 wk
7 Jun
11 Jun
0 wk
20 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
2 – 16 May
9 May
4-6 wk
13 Jun
1 wk after
Garden pansy
Viola × wittrockiana
29 Mar – 12 Apr
16 May
8-10 wk
7 Jun
11 Jul
0 wk
17 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
21 Mar – 18 Apr
19 Apr
8-12 wk
13 Jun
14 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
14 – 28 Apr
20 Apr
6-8 wk
9 Jun
0 wk
20 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
2 – 16 May
24 May
4-6 wk
13 Jun
21 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
9 – 23 May
31 May
3-5 wk
13 Jun
21 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
2 – 16 May
18 May
4-6 wk
13 Jun
15 Jun
1 wk after
2 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
28 Mar – 25 Apr
16 May
8-12 wk
20 Jun
11 Jul
2 wk after
Bee balm
Monarda didyma
15 Mar – 12 Apr
16 Apr
8-12 wk
7 Jun
11 Jun
0 wk
2 Jul
4 wk after
Yarrow
Achillea millefolium
12 – 26 Apr
6-8 wk
7 Jun
0 wk
20 Jun
2 wk after
Safflower
Carthamus tinctorius
7 Jun
11 Jun
0 wk
8 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
12 – 26 Apr
20 May
6-8 wk
7 Jun
1 Jul
0 wk
22 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
26 Apr – 10 May
3 Jun
4-6 wk
7 Jun
1 Jul
0 wk
20 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
21 Mar – 4 Apr
10-12 wk
13 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
16 – 23 May
8 Jun
3-4 wk
13 Jun
29 Jun
1 wk after
20 Jun
2 wk after
China aster
Callistephus chinensis
25 Apr – 9 May
9 May
6-8 wk
20 Jun
20 Jun
2 wk after
20 Jul
6 wk after
Annual phlox
Phlox drummondii
18 Apr – 2 May
6 May
6-8 wk
13 Jun
17 Jun
1 wk after
20 Jul
6 wk after
Hollyhock
Alcea rosea
12 – 26 Apr
6-8 wk
7 Jun
0 wk
20 Jun
2 wk after
Alpine delphinium
Delphinium elatum
15 Mar – 12 Apr
16 Apr
8-12 wk
7 Jun
11 Jun
0 wk
2 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
18 Apr – 2 May
13 May
6-8 wk
13 Jun
24 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
14 – 28 Apr
29 Apr
6-8 wk
9 Jun
10 Jun
0 wk
20 Jul
6 wk after
Wood sage
Salvia nemorosa
29 Mar – 12 Apr
6 Apr
8-10 wk
7 Jun
0 wk
2 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
4 Apr – 2 May
10 May
6-10 wk
13 Jun
21 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
7 Jun
9 Jul
0 wk
8 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
4 – 18 Apr
26 Apr
8-10 wk
13 Jun
21 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
12 – 26 Apr
30 Apr
6-8 wk
7 Jun
11 Jun
0 wk
20 Jun
2 wk after