Category Archives for Identify Weeds

Identifying Weeds: Duckweed (Lemna minor)

Duckweed (Lemna minor) Height x spread: Prostrate, indefinite spread. Leaves: Stemless and rootless, tiny modified pale green leaves. Flowers: Minute and rarely seen, summer. Other features: Common annual, covering water surface with floating leaf carpet. Read more …

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Duckweed (Lemna minor)

Indentifying Garden Weeds: Canadian pondweed (Elodea canadensis)

Canadian pondweed (Elodea canadensis) Height x spread: Submerged, wide-spreading oxygenator. Leaves: Dark green and lance-shaped, in groups of three. Flowers: Scarce, minute, purple-tinged white, late spring to early autumn. Other features: Spreads by water-borne seed. Perennial. Read more …

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Indentifying Garden Weeds: Canadian pondweed (Elodea canadensis)

Identifying Weeds: Sun spurge (Euphorbia helioscopia)

Sun spurge (Euphorbia helioscopia) Height x spread: Up to 50 x 20cm (20 x 8in). Leaves: Oval and finely toothed, pale green. Flowers: Yellow-green bracts in broad clusters, mid spring to mid autumn, often into winter. Other features: Milky stem … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Sun spurge (Euphorbia helioscopia)

Identifying Weeds: Stinging nettle (Urtica dioica)

Stinging nettle (Urtica dioica) Height x spread: 30-120 x 30cm (1-4 x 1ft). Leaves: Deep green, toothed, hairy, 4-8cm (1-½ – 3in) long. Flowers: Yellow green tassels, 10cm (4in) long, late spring to early autumn. Other features: Gives painful stings. … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Stinging nettle (Urtica dioica)

Shepherd’s purse (Capsella bursa-pastoris)

Shepherd’s purse (Capsella bursa-pastoris) Height x spread: Up to 35 x 25cm (14 x 10in). Leaves: Grey-green, long and narrow, variably toothed or lobed along the edges, all in a ground-level rosette. Flowers: Tiny, white, in a tall upright spike, … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Shepherd’s purse (Capsella bursa-pastoris)

Rosebay willowherb (Epilobium/Chamaenerion angustifolium)

Rosebay willowherb (Epilobium/Chamaenerion angustifolium) Height x spread: Up to 150 x 30cm (5 x 1 ft). Leaves: Dark green, narrow, veins reddish, edges wavy. Flowers: Rose-purple, 2-3cm (1 – 1-1/4in) across, in a tall spire, summer to early autumn. Other … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , , , | Comments Off on Rosebay willowherb (Epilobium/Chamaenerion angustifolium)

Red deadnettle (Lamium purpureum)

Red deadnettle (Lamium purpureum) Height x spread: 15-30 x 15cm (6-12 x 6in). Leaves: Oval, edges serrated, often tinged purple, up to 5cm (2in) long. Flowers: Pinkish purple, hooded, 1-1.5cm (3/8-5/8in) long, in rings at upper leaf joints, spring to … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Red deadnettle (Lamium purpureum)

Identifying Weeds: Pineapple weed (Matricaria matricarioides)

Pineapple weed (Matricaria matricarioides) Height x spread: 5-25 x 15cm (2-10 x 6in). Leaves: Finely divided, feathery, strongly aromatic. Flowers: Yellow-green, resembling a pineapple in shape, 5-8mm (¼-3/8in) across, early to mid summer. Other features: Particularly common along paths and … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Pineapple weed (Matricaria matricarioides)

Identifying Weeds: Common Persicaria (Polygonum persicaria)

Common Persicaria (Polygonum persicaria) Height x spread: 30-60cm (1-2ft). Leaves: Lance-shaped, dark green, often with purple blotches, on branching stems. Flowers: Dense pink or whitish spikes, early summer to mid autumn. Other features: Annual. Self-seeds freely. Common on damp soils. … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Common Persicaria (Polygonum persicaria)

Identifying Weeds: Oxalis (Oxalis sp.)

Oxalis (Oxalis sp.) Height x spread: 5 x 30cm (2 x 12in). Leaves: Trefoil, pale green spotted pale orange. Flowers: White, purple or pink clusters, late spring to early autumn. Other features: Reproduces by bulbils and seed; member of the … Continue reading

21. July 2011 by admin
Categories: Identify Weeds, Weed Control | Tags: , | Comments Off on Identifying Weeds: Oxalis (Oxalis sp.)

← Older posts

Follow

Get every new post delivered to your Inbox

Join other followers: