Genista (Broom) Invasiveness: Only a Problem in NW California/Oregon

Gardener bought Genista cytisus spachiana, neighbor warns of 20-year battle with a broom species. Is it invasive?

Invasiveness Is Species- and Location-Specific

• Only Genista monspessulana (French broom) is federally listed noxious weed.
• Problem only in Northern California and Oregon.
• G. spachiana (Canary Island broom) is not invasive elsewhere.

Growing G. spachiana

• Native to Canary Islands (temps rarely exceed 80°F).
• Struggles in sustained 90°F heat.
• Can grow in large patio pot with good drainage, full sun, moderate water.

Perspective

Invasive potential depends on climate match. Most brooms are well-behaved outside their ideal zone. Your plant poses minimal risk unless you're in coastal NorCal/Oregon.