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Summary
Form: Spreading or horizontal, Upright or erect.
Physical Characteristics
Poa annua is a ANNUAL growing to 0.3 m (1ft) by 0.2 m (0ft 8in).
See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in leaf all year, in flower from February to November, and the seeds ripen from April to November. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind, Cleistogomy (self-pollinating without flowers ever opening). The plant is self-fertile.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very acid soils.
It cannot grow in the shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Plant Habitats
Lawn; Meadow;
Edible Uses
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
None known
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
A very easily grown plant, it succeeds in any well-drained moderately fertile soil in a sunny position[1]. Tolerates very acid soils[1]. This plant is a very common garden weed and will not usually require cultivation. An important food plant for the caterpillars of many species of butterfly[30]. It is often found growing in close cut lawns[1]. The seed drops very readily from the plant so it is difficult to harvest[1]. This also means that the seed is spread very easily, making the plant even more difficult to eradicate[K]. Special Features:North American native.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
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Plant Propagation
Seed - there should be no problem with having to sow this plant since it does the job very effectively without our help.
Other Names
If available other names are mentioned here
Native Plant Search
Search over 900 plants ideal for food forests and permaculture gardens. Filter to search native plants to your area. The plants selected are the plants in our book 'Plants For Your Food Forest: 500 Plants for Temperate Food Forests and Permaculture Gardens, as well as plants chosen for our forthcoming related books for Tropical/Hot Wet Climates and Mediterranean/Hot Dry Climates. Native Plant Search
Found In
Countries where the plant has been found are listed here if the information is available
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
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| Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Achnatherum hymenoides | Indian Millet, Indian ricegrass | Perennial | 0.6 |
7-10
| | LMH | N | M | 3 | 0 | 3 |
| Aegilops speltoides | Goatgrass | Annual | 0.6 |
0-0
| | LMH | SN | DM | 1 | 0 | |
| Aegilops triuncialis | Barbed goatgrass, Barb goatgrass | Annual | 0.3 |
8-10
| | LMH | N | DM | 1 | 0 | 0 |
| Agropyron elongatum | Tall Wheatgrass | Perennial | 1.8 |
5-9
| | LMH | N | DM | 0 | 0 | 3 |
| Agrostis capillaris | Browntop Bent Grass | Perennial | 0.4 |
3-10
| F | LM | SN | WeM | 0 | 0 | 4 |
| Agrostis perennans | Upland Bent, Upland bentgrass | Perennial | 0.9 |
0-0
| | LMH | SN | DM | 1 | 0 | 2 |
| Alopecurus aequalis | Shortawn Foxtail, Sonoma shortawn foxtail | Annual/Perennial | 0.3 |
0-0
| | LMH | SN | MWe | 1 | 1 | |
| Ammophila arenaria | Marram Grass, European beachgrass | Perennial | 1.2 |
4-8
| | LM | N | DM | 1 | 0 | 4 |
| Ammophila breviligulata | Beach Grass, American beachgrass | Perennial | 1.3 |
4-8
| | LM | N | DM | 0 | 0 | |
| Ampelodesmos mauritanicus | Mauritanian grass | Perennial | 3.0 |
7-10
| | LM | N | DM | 0 | 0 | |
| Andropogon gerardii | Big Bluestem | Perennial | 2.0 |
4-8
| | L | N | DM | 0 | 1 | 2 |
| Andropogon virginicus | Broomsedge Bluestem | Perennial | 1.2 |
5-9
| | L | N | DM | 0 | 1 | 1 |
| Anthoxanthum odoratum | Sweet Vernal Grass | Perennial | 0.5 |
0-0
| | LMH | N | DM | 2 | 2 | 2 |
| Arundinaria gigantea | Canebrake bamboo, Cane Reed, Giant cane | Bamboo | 9.0 |
5-9
| | LMH | SN | M | 3 | 1 | 4 |
| Arundinaria spp | Running Bamboo | Bamboo | 10.0 |
4-10
| F | LMH | FSN | M | 3 | 1 | 4 |
| Arundinella hookeri | | Perennial | 6.0 |
6-9
| | LMH | N | M | 0 | 0 | 1 |
| Arundinella nepalensis | | Perennial | 2.0 |
6-9
| | LMH | N | M | 0 | 0 | 3 |
| Arundo donax | Giant Reed, Giant Reed Grass | Perennial | 6.0 |
6-10
| F | LMH | N | MWe | 3 | 2 | 4 |
| Astrebla pectinata | Barley Mitchell Grass | Perennial | 1.0 |
-
| | LMH | SN | M | 1 | 0 | |
| Astrebla squarrosa | Bull Mitchell grass | Perennial | 1.5 |
4-12
| F | LMH | N | DM | 4 | 0 | 1 |
| Avena abyssinica | Abyssinian Oat | Annual | 0.0 |
-
| | LMH | N | DM | 2 | 0 | 2 |
| Avena barbata | Slender Oat | Annual | 0.0 |
4-8
| F | LM | N | DM | 2 | 0 | 2 |
| Avena brevis | | Annual | 0.0 |
-
| | LMH | N | DM | 2 | 0 | 2 |
| Avena byzantina | Red Oat | Annual | 0.0 |
-
| | LMH | N | DM | 2 | 0 | 2 |
| Avena fatua | Wild Oats | Annual | 1.5 |
0-0
| | LMH | N | DM | 2 | 1 | 2 |
| Avena ludoviciana | Oats | Annual | 0.0 |
-
| | LMH | N | DM | 2 | 0 | 2 |
| Avena nuda | Naked Oat | Annual | 0.9 |
-
| | LMH | N | DM | 4 | 0 | 2 |
| Avena nudibrevis | | Annual | 0.0 |
-
| | LMH | N | DM | 2 | 0 | 2 |
| Avena orientalis | Hungarian Oat | Annual | 0.0 |
-
| | LMH | N | DM | 3 | 1 | 2 |
| Avena sativa | Oats, Common oat | Annual | 0.9 |
0-0
| | LMH | N | DM | 3 | 3 | 4 |
|
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Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
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Botanical References
17
Links / References
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