Callitriche obtusangula: complete guide
Callitriche obtusangula
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Overview
Callitriche obtusangula is an elegant aquatic plant. This plant forms dense underwater mats and flowers May to October. Frost-hardy and suited for temperate climates.
Appearance
Plant reaches 5-15 cm depth with slender green stems. Tiny green flowers appear in waves during growing season in characteristic four-sided fruits.
Ideal Location
Thrives in full sun with 6-8 hours direct sunlight. Plant in shallow to moderate depth water (15-60 cm). Flexible for static and flowing water in natural ponds.
Soil
Not fussy on substrate. Sand (2-5 cm) preferred. Prefers neutral to alkaline water (pH 7.0-7.5). Nutrients not critical for this aquatic plant.
Watering
As aquatic plant needs regular water. Water movement promotes oxygen. Temperature: 5-20 C ideal. Light: 8/10. Humidity very high.
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Pruning
Minimal maintenance. Moderate growth rate. If needed carefully thin in July-August. Regularly remove dead parts to prevent disease.
Maintenance Calendar
May-October: Regular monitoring and flowering. July-August: Carefully thin zones. November-April: Rest period with minimal maintenance.
Winter Hardiness
Frost-hardy to -5 to -10 C. Overwinters in shallow ponds if not completely frozen. Plant parts sink to bottom in winter.
Companion Plants
Potamogeton natans, Nymphaea alba, Ranunculus aquatilis, Sparganium erectum, Scirpus lacustris combine well.
Final Thoughts
Valuable for natural ponds. Frost hardiness and minimal care. Gardenworld.app recommends for underwater gardens. Safe and sustainable. Check garden centers.
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