As a gardening and landscaping expert, I can confidently say that tall phlox is not considered invasive. While it does spread, it is not overly aggressive or destructive like many invasive plant species. Instead, tall phlox has a tendency to gently spread and fill in spaces, creating a beautiful and natural-looking garden.
One of the great things about tall phlox is its ability to pass along to friends and fellow gardeners. Its spreading nature makes it easy to divide and share with others, allowing everyone to enjoy its beauty in their own gardens. I have personally experienced the joy of sharing tall phlox with my gardening friends, and it has always been well-received.
When it comes to its spreading habits, tall phlox grows by sending out underground runners called rhizomes. These rhizomes allow the plant to slowly colonize new areas over time. However, it does not aggressively take over and choke out other plants like invasive species tend to do.
In my experience, tall phlox spreads at a moderate pace. It gradually fills in empty spaces, creating a lush and full garden bed. This spreading habit can be controlled by dividing the plants every few years to keep them in check. By dividing the clumps, you can manage their growth and prevent overcrowding.
It is worth noting that tall phlox tends to spread more in favorable growing conditions. If the plant is happy and well-cared for, it may spread more quickly. However, this is not a cause for concern as long as it is kept under control through regular maintenance and division.
To maintain the spread of tall phlox, I recommend the following tips:
1. Regular division: Every 3-4 years, divide the clumps of tall phlox to prevent overcrowding and promote healthy growth. This can be done in early spring or fall when the plant is dormant.
2. Pruning: Trim back the stems of tall phlox after blooming to encourage bushier growth and prevent the plant from becoming too leggy. This will also help to control its spread.
3. Monitoring and maintenance: Keep an eye on the growth of tall phlox and remove any unwanted shoots that may be encroaching on other plants or areas of the garden. Regular weeding and mulching can also help to keep the plant in check.
Tall phlox may spread, but it is not invasive. Its spreading habit can be managed through regular maintenance and division. The ability to share this beautiful plant with friends and fellow gardeners is one of its many charms. So, if you’re considering adding tall phlox to your garden, rest assured that it will enhance the beauty of your space without causing any invasive issues.
