Chickweed

Emergence

• It is close to the group of mid-early spring weeds, whose seeds start to germinate at temperatures above 4–5 °C.
• During germination the seeds respond positively to light.

Favourable conditions

• It belongs to the umbrophytes: weeds that have stems lying on the soil surface.
• It belongs to the cryophilic (cold-loving) weeds. It starts growing at temperatures below 5–10 °C, and at temperatures above 30 °C it is somewhat suppressed.
• In the Forest-Steppe zone it prevails on northern slopes, where weed species typical of regions with a colder climate are more widespread.

Every fact rests on a quote from its source, and each quote was checked against the page it is printed on.

1. EPPO Global Database · European and Mediterranean Plant Protection Organization
2. Приказ № 15-02/584 от 29.06.2015, приложение 1 (пороги вредоносности), казахский текст · Министерство сельского хозяйства Республики Казахстан
3. Фітосанітарний прогноз Вінницької області на 2025 рік · ГУ Держпродспоживслужби у Вінницькій області
4. Зуза В. С., «Гербологія», монографія, 468 с. · Харківський державний біотехнологічний університет; Харків: Стиль-Издат, 2022 · p. 61, 62, 80, 81, 87
5. Photos: Scott Loarie, iNaturalist, CC0 1.0 · Dalgial, Wikimedia Commons, CC BY-SA 3.0 · AnRo0002, Wikimedia Commons, CC0 1.0