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Method
Rel. frost
Last spring frost (0°C) 9 Jun Normal year · 20 years of data
Frost-free season 89 days 9 Jun – 6 Sep
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)
21 Apr – 5 May
11 Jun
5-7 wk
9 Jun
16 Jul
0 wk
10 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
23 Jun
4-6 wk
9 Jun
21 Jul
0 wk
10 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
6 Jun
5-7 wk
9 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
18 – 25 May
23 May
3-4 wk
15 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
11 – 18 May
3 Jun
4-5 wk
15 Jun
1 Jul
1 wk after
22 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
17 Mar – 14 Apr
17 Mar
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Greenhouse
31 May
1 Jun
1 wk before
31 May
1 wk before
Maize
Zea mays
Greenhouse
12 – 19 May
13 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
24 Jun
3-4 wk
11 Jun
15 Jul
0 wk
22 Jun
5 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
1 Jul
0 wk
9 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
6 Jun
5-7 wk
9 Jun
11 Jul
0 wk
9 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Fleece
29 Apr – 13 May
3 May
4-6 wk
10 Jun
0 wk
10 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
16 Jun
5-7 wk
9 Jun
21 Jul
0 wk
10 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
18 – 25 May
17 Jun
3-4 wk
15 Jun
8 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
12 – 19 May
14 May
3-4 wk
9 Jun
0 wk
15 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
5 Jul
3-4 wk
9 Jun
26 Jul
0 wk
10 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
6 – 20 May
15 May
2-4 wk
3 Jun
1 wk before
3 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Greenhouse
31 May
1 Jun
1 wk before
31 May
1 wk before
Spinach
Spinacia oleracea
12 – 19 May
20 Jul
3-4 wk
9 Jun
10 Aug
0 wk
6 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
4 – 18 Jul
4-6 wk
15 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
14 – 28 Apr
22 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
12 – 26 May
19 Jun
2-4 wk
9 Jun
3 Jul
0 wk
22 Jun
23 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
18 Jun
4-6 wk
9 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
20 Jun
3-4 wk
9 Jun
11 Jul
0 wk
10 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
4 – 18 May
26 May
4-6 wk
15 Jun
23 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
16 May
8-10 wk
9 Jun
11 Jul
0 wk
4 Jul
4 wk after
Dill
Anethum graveolens
10 Jun
15 Jul
0 wk
Wild chives
Allium schoenoprasum
14 – 28 Apr
30 May
6-8 wk
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
17 Mar – 14 Apr
16 May
8-12 wk
9 Jun
11 Jul
0 wk
4 Jul
4 wk after
Coriander
Coriandrum sativum
9 Jun
4 Aug
0 wk
22 Jun
25 Jul
2 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
1 May
8-10 wk
11 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
6 May
8-10 wk
9 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
4 Jul
4 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
10 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
3 – 31 Mar
31 Mar
10-14 wk
9 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
18 – 25 May
2 Jun
3-4 wk
15 Jun
23 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
6 – 20 Apr
23 Apr
8-10 wk
15 Jun
18 Jun
1 wk after
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
19 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
20 Apr – 4 May
7 May
6-8 wk
15 Jun
18 Jun
1 wk after
29 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
16 – 30 Apr
14 May
6-8 wk
11 Jun
25 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
27 Apr – 25 May
28 May
4-8 wk
22 Jun
25 Jun
2 wk after
22 Jun
2 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
22 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
30 Mar – 27 Apr
13 Jun
8-12 wk
22 Jun
8 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
20 Apr – 4 May
17 May
6-8 wk
15 Jun
28 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
Fleece
31 Mar – 14 Apr
16 Apr
8-10 wk
9 Jun
11 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
26 Jun
0 wk
10 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
14 – 28 Apr
7 May
6-8 wk
9 Jun
18 Jun
0 wk
11 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
Fleece
17 Mar – 14 Apr
16 Apr
8-12 wk
9 Jun
11 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
17 Mar – 14 Apr
17 Mar
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Season too short
23 Mar – 20 Apr
18 Apr
8-12 wk
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
20 Apr – 4 May
2 May
6-8 wk
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
6 May
8-12 wk
9 Jun
1 Jul
0 wk
19 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
6 – 20 Apr
13 May
8-10 wk
15 Jun
8 Jul
1 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
27 May
5-8 wk
9 Jun
1 Jul
0 wk
Stock
Matthiola incana
14 – 28 Apr
30 May
6-8 wk
9 Jun
11 Jul
0 wk
22 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
22 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
4 – 18 May
11 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
16 May
8-10 wk
9 Jun
11 Jul
0 wk
19 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
23 Mar – 20 Apr
23 Apr
8-12 wk
15 Jun
18 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
Fleece
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
4 Jul
4 wk after
Common zinnia
Zinnia elegans
Fleece
4 – 18 May
26 May
4-6 wk
15 Jun
23 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
11 – 25 May
2 Jun
3-5 wk
15 Jun
23 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
4 – 18 May
28 May
4-6 wk
15 Jun
25 Jun
1 wk after
4 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
30 Mar – 27 Apr
18 May
8-12 wk
22 Jun
13 Jul
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
16 Apr
8-12 wk
9 Jun
11 Jun
0 wk
4 Jul
4 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Safflower
Carthamus tinctorius
9 Jun
11 Jun
0 wk
10 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
0 wk
24 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
3 Jun
4-6 wk
9 Jun
1 Jul
0 wk
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
23 Mar – 6 Apr
27 Mar
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
18 – 25 May
8 Jun
3-4 wk
15 Jun
29 Jun
1 wk after
22 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
20 Apr – 4 May
28 May
6-8 wk
15 Jun
9 Jul
1 wk after
4 Jul
4 wk after
Annual phlox
Phlox drummondii
Fleece
14 – 28 Apr
17 May
6-8 wk
9 Jun
28 Jun
0 wk
4 Jul
4 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
22 Jun
2 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
16 Apr
8-12 wk
9 Jun
11 Jun
0 wk
4 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
20 Apr – 4 May
17 May
6-8 wk
15 Jun
28 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
0 wk
22 Jul
6 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
6 Apr
8-10 wk
9 Jun
0 wk
4 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
6 Apr – 4 May
12 May
6-10 wk
15 Jun
23 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
9 Jul
0 wk
10 Jun
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
6 – 20 Apr
30 Apr
8-10 wk
15 Jun
25 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
0 wk
22 Jun
2 wk after