Do agapanthus have invasive roots?
Hereof, how deep are Agapanthus roots?
Plant the Agapanthus rhizomes one inch (2.5 cm) deep and space 24 inches (60 cm) apart. Keep plants well watered during the growing season to ensure success.
Beside this, how does agapanthus spread?
Agapanthus is propagated in two ways — by seed or by division of the clump. Once established, agapanthus can spread slowly by seed. Unlike berry-producing weedy plants, such as privet or cotoneaster, agapanthus is not spread by birds. Instead, seeds fall around the clump and have a tendency to drift downhill.
With proper care, agapanthus flowering occurs repeatedly for several weeks throughout the season, then this perennial powerhouse returns to put on another show the next year. Agapanthus is a nearly indestructible plant and, in fact, most agapanthus varieties self-seed generously and may even become somewhat weedy.