Create your calendar
Method
Rel. frost
Last spring frost (0°C) 6 May Frost 9 of 10 years · 20 years of data
Frost-free season 133 days 6 May – 16 Sep
Probability that frost is over

10% = 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 Mar – 1 Apr
14 Jun
5-7 wk
6 May
19 Jul
0 wk
7 May
9 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
25 Mar – 8 Apr
26 Jun
4-6 wk
6 May
24 Jul
0 wk
7 May
14 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
22 Feb – 22 Mar
8-12 wk
17 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Mar – 1 Apr
9 Jun
5-7 wk
6 May
14 Jul
0 wk
6 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Season too short
19 – 26 Apr
3-4 wk
17 May
2 wk after
Florence Fennel
Foeniculum vulgare
5 – 12 May
20 May
4-5 wk
9 Jun
17 Jun
5 wk after
18 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
19 – 26 May
3-4 wk
16 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
11 Feb – 11 Mar
20 Mar
8-12 wk
6 May
15 May
0 wk
19 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
4 Jun
0 wk
7 May
25 May
0 wk
Maize
Zea mays
Season too short
12 – 19 Apr
3-4 wk
10 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 Apr
19 Jun
3-4 wk
12 May
10 Jul
1 wk after
19 May
30 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 May
4 Jul
0 wk
6 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Mar – 1 Apr
9 Jun
5-7 wk
6 May
14 Jul
0 wk
6 May
4 Jul
0 wk
Potato
Solanum tuberosum
4 – 18 Apr
16 May
4-6 wk
16 May
13 Jun
1 wk after
16 May
3 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Mar – 1 Apr
19 Jun
5-7 wk
6 May
24 Jul
0 wk
7 May
14 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
19 – 26 Apr
11 May
3-4 wk
17 May
1 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 Apr
22 May
3-4 wk
12 May
12 Jun
1 wk after
19 May
2 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Mar – 8 Apr
21 Jun
4-6 wk
6 May
19 Jul
0 wk
Lettuce
Lactuca sativa
8 – 15 Apr
8 Jul
3-4 wk
6 May
29 Jul
0 wk
7 May
19 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Mar – 8 Apr
21 Jun
4-6 wk
6 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
8 – 22 Apr
25 May
2-4 wk
6 May
8 Jun
0 wk
6 May
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
4 Jun
0 wk
7 May
25 May
0 wk
Spinach
Spinacia oleracea
8 – 15 Apr
23 Jul
3-4 wk
6 May
13 Aug
0 wk
3 May
3 Aug
0 wk
Sweet potato
Ipomoea batatas
31 May – 14 Jun
4-6 wk
12 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
15 – 29 Mar
6-8 wk
10 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
12 – 26 Apr
13 May
2-4 wk
10 May
27 May
1 wk after
19 May
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Mar – 8 Apr
21 Jun
4-6 wk
6 May
19 Jul
0 wk
Garden pea
Pisum sativum
8 – 15 Apr
23 Jun
3-4 wk
6 May
14 Jul
0 wk
7 May
4 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
5 – 19 Apr
19 Apr
4-6 wk
17 May
17 May
2 wk after
Lemon balm
Melissa officinalis
25 Feb – 11 Mar
19 May
8-10 wk
6 May
14 Jul
0 wk
31 May
4 Jul
4 wk after
Dill
Anethum graveolens
7 May
10 Jul
0 wk
Wild chives
Allium schoenoprasum
11 – 25 Mar
2 Jun
6-8 wk
6 May
14 Jul
0 wk
7 May
4 Jul
0 wk
Spearmint
Mentha spicata
11 Feb – 11 Mar
19 May
8-12 wk
6 May
14 Jul
0 wk
31 May
4 Jul
4 wk after
Coriander
Coriandrum sativum
6 May
30 Jul
0 wk
19 May
20 Jul
2 wk after
Garden sage
Salvia officinalis
3 – 17 Mar
4 May
8-10 wk
12 May
29 Jun
1 wk after
Common thyme
Thymus vulgaris
25 Feb – 11 Mar
9 May
8-10 wk
6 May
4 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Mar
23 May
6-8 wk
6 May
4 Jul
0 wk
31 May
24 Jun
4 wk after
Parsley
Petroselinum crispum
11 – 25 Mar
23 May
6-8 wk
6 May
4 Jul
0 wk
7 May
24 Jun
0 wk
Rosemary
Salvia rosmarinus
3 Feb – 3 Mar
19 Mar
10-14 wk
12 May
28 May
1 wk after

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
19 – 26 Apr
26 Apr
3-4 wk
17 May
17 May
2 wk after
Cornflower
Centaurea cyanus
6 May
14 Jul
0 wk
7 May
4 Jul
0 wk
Statice
Limonium sinuatum
Fleece
8 – 22 Mar
20 Mar
8-10 wk
17 May
2 wk after
Sweet William
Dianthus barbatus
11 – 25 Mar
6-8 wk
6 May
0 wk
16 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
22 Mar – 5 Apr
3 Apr
6-8 wk
17 May
2 wk after
25 Jun
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
17 – 31 Mar
4 Apr
6-8 wk
12 May
16 May
1 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
24 Mar – 21 Apr
18 Apr
4-8 wk
19 May
2 wk after
19 May
2 wk after
Foxglove
Digitalis purpurea
25 Feb – 11 Mar
8-10 wk
6 May
0 wk
19 May
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
3 – 31 Mar
7 May
8-12 wk
26 May
2 Jul
3 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
22 Mar – 5 Apr
13 Apr
6-8 wk
17 May
25 May
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
14 – 28 Apr
4-6 wk
26 May
3 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Mar
5 Apr
8-10 wk
12 May
31 May
1 wk after
Love in a mist
Nigella damascena
6 May
29 Jun
0 wk
7 May
19 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
15 – 29 Mar
6 Apr
6-8 wk
10 May
18 May
1 wk after
7 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
17 Feb – 17 Mar
5 Apr
8-12 wk
12 May
31 May
1 wk after
Cardoon
Cynara cardunculus
Fleece
22 Feb – 22 Mar
20 Mar
8-12 wk
17 May
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
22 Feb – 22 Mar
12 Mar
8-12 wk
17 May
2 wk after
Globe amaranth
Gomphrena globosa
Season too short
22 Mar – 5 Apr
26 Mar
6-8 wk
17 May
2 wk after
Corn poppy
Papaver rhoeas
6 May
14 Jul
0 wk
7 May
4 Jul
0 wk
Snapdragon
Antirrhinum majus
11 Feb – 11 Mar
9 May
8-12 wk
6 May
4 Jul
0 wk
16 May
24 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
8 – 22 Mar
12 Apr
8-10 wk
17 May
7 Jun
2 wk after
Sweet pea
Lathyrus odoratus
11 Mar – 1 Apr
30 May
5-8 wk
6 May
4 Jul
0 wk
Stock
Matthiola incana
11 – 25 Mar
2 Jun
6-8 wk
6 May
14 Jul
0 wk
19 May
4 Jul
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Mar
3 May
6-8 wk
6 May
14 Jun
0 wk
19 May
4 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
5 – 19 Apr
4-6 wk
17 May
2 wk after
Garden pansy
Viola × wittrockiana
25 Feb – 11 Mar
19 May
8-10 wk
6 May
14 Jul
0 wk
16 May
4 Jul
1 wk after
Petunia
Petunia
Fleece
22 Feb – 22 Mar
20 Mar
8-12 wk
17 May
2 wk after
Sweet Scabious
Scabiosa atropurpurea
17 – 31 Mar
19 Apr
6-8 wk
12 May
31 May
1 wk after
18 Jun
6 wk after
Common zinnia
Zinnia elegans
Fleece
5 – 19 Apr
19 Apr
4-6 wk
17 May
17 May
2 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
12 – 26 Apr
26 Apr
3-5 wk
17 May
17 May
2 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
5 – 19 Apr
18 Apr
4-6 wk
17 May
2 wk after
31 May
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
3 – 31 Mar
11 Apr
8-12 wk
26 May
6 Jun
3 wk after
Bee balm
Monarda didyma
11 Feb – 11 Mar
19 Apr
8-12 wk
6 May
14 Jun
0 wk
31 May
4 Jun
4 wk after
Yarrow
Achillea millefolium
11 – 25 Mar
3 Apr
6-8 wk
6 May
15 May
0 wk
19 May
2 wk after
Safflower
Carthamus tinctorius
6 May
14 Jun
0 wk
7 May
4 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Mar
23 May
6-8 wk
6 May
4 Jul
0 wk
20 Apr
24 Jun
2 wk before
Bishop's flower
Ammi majus
25 Mar – 8 Apr
6 Jun
4-6 wk
6 May
4 Jul
0 wk
19 May
24 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
22 Feb – 8 Mar
10-12 wk
17 May
2 wk after
Sunflower
Helianthus annuus
28 Apr – 5 May
27 May
3-4 wk
26 May
17 Jun
3 wk after
31 May
7 Jun
4 wk after
China aster
Callistephus chinensis
31 Mar – 14 Apr
16 May
6-8 wk
26 May
27 Jun
3 wk after
18 Jun
6 wk after
Annual phlox
Phlox drummondii
Fleece
15 – 29 Mar
13 Apr
6-8 wk
10 May
25 May
1 wk after
31 May
4 wk after
Hollyhock
Alcea rosea
11 – 25 Mar
6-8 wk
6 May
0 wk
19 May
2 wk after
Alpine delphinium
Delphinium elatum
11 Feb – 11 Mar
19 Apr
8-12 wk
6 May
14 Jun
0 wk
31 May
4 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
22 Mar – 5 Apr
13 Apr
6-8 wk
17 May
25 May
2 wk after
Black-eyed Susan
Rudbeckia hirta
17 – 31 Mar
6 May
6-8 wk
12 May
17 Jun
1 wk after
18 Jun
6 wk after
Wood sage
Salvia nemorosa
25 Feb – 11 Mar
9 Apr
8-10 wk
6 May
4 Jun
0 wk
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
8 Mar – 5 Apr
5 Apr
6-10 wk
17 May
17 May
2 wk after
California goldenpoppy
Eschscholzia californica
6 May
9 Jul
0 wk
7 May
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
17 – 31 Mar
22 Apr
8-10 wk
26 May
17 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
11 – 25 Mar
3 May
6-8 wk
6 May
14 Jun
0 wk
19 May
4 Jun
2 wk after