Blue porterweed is very popular in South Florida, with brilliant blue flowers on the upright stems. Blue is the most common color. They are moderately cold hardy. Some other varieties include pink, purple and red porterweed and they all have varying sizes and growth habits. These plants are kind of sprawling. They are best used in a casual setting. They bloom off and on all year.
Blue Porterweed Specs
This is a fast grower it actually grows like a weed. That’s where it got it’s name. You can keep it trimmed to about 2-1/2 to 3 feet tall. They do best in part sun to partial shade, but will handle full sun. They are moderately cold hardy and do best in Zone 10 and warmer areas of Zone 9B. It’s considered evergreen though it can lose leaves in a harsh winter.
Blue Porterweed Care
You will want to add top soil when you plant. It is not a bad idea to add in composted cow manure as well. You can trim them occasionally to keep them shaped. Cut it back hard in spring which will encourage new growth. Fertilize 3 times a year with a granular fertilizer. You can apply bone meal and/or liquid fertilizer to promote heavier blooms. They prefer regular watering, but not too wet.
Blue Porterweed Spacing
Place them about 2-1/2 to 3 feet apart. If you are planting next to the house give them about 2-1/2 feet. Come in about 3 feet if you are planting next to drives or walkways. They will work fine in containers.
Contact us today for a free estimate to add a beautiful Blue Porterweed to your landscape! Above all our professional crews can help with all of your landscape needs. Installation and design to total yard maintenance. We service all communities in Collier county, including Naples, Marco Island and Bonita Springs. Let Collier Cutters of SWFL be your landscape contractor. No project is too small or too big. Therefore if you are looking to install a fresh new landscape at your new home or just want a few new plants to add some color we’ve got you covered!