Varieties Of The Petrea Volubilissima Plant

Petrea volubilis

DescriptionThe plant name, Petrea volubilissima, commonly referred to as petrol, queen's lace, or sandpaper vine, is an evergreen perennial flowering vine species in the family Verbenaceae, naturalized in the Americas, which is highly valued for its splendid show of purple flowers. The plant reaches a height of about 15 feet. The graceful purple blossoms are believed to have been introduced by early settlers in Nevada in 18resenting the Spanish mission. In Hawaii, petreaus have been found along the shoreline and along the roadsides.

LocationThe plant is indigenous to the Desert regions of Nevada and Arizona. It has successfully grown in a wide range of soil conditions, from light limestone to clay soils. The flowers usually bloom during late spring through early summer. They reproduce by growth of new shoots, known as petrol seeds, from the underground stems which branch out into new plants.

Germination PotentialThere is several different kinds of Petrea plants with different preferred growing conditions; however, the most common preferred type of seeds to germinate are those from a Volubilissima varietal, or a variant of this plant. This variety is known for its ability to grow in alkaline soil, with an optimum pH level of 6.5. It has also been shown that these seeds germinate at a faster rate than seeds from other types of plant species.

Plant VarietiesThe seeds from this plant are quite easy to germinate; however, some varieties have been found to be more difficult to germinate. Most of these have red or purple flowers that appear to be blooming just before the seed pod bursts open, giving the impression of tiny flowers. There are also white flowers that have been reported to grow at a faster rate than the rest. It is also interesting to note that some varieties of this plant do not produce any flowers at all.

Growing ConditionsThis plant requires a warm and moist environment. The soil should be enriched with nutrients such as nitrogen, magnesium, and phosphorus; as well as the correct amount of sunlight and watering. It is important that it receives an adequate amount of water so that it does not dry out. The plant needs access to sunlight during the daytime, but prefers a slightly shaded area during the evening. It will grow in almost any type of growing medium, which can be used for planting in the garden, inside a home, around a pool, or in a conservatory.

PruningThe leaves of the plant reach a length of about two to four inches, which makes it easy to keep on the plant. However, this also means that the plant will attract aphids, which can cause damage. The desired height of the plant should be cut once it reaches three to four inches, which will make it easier for it to grow upwards. It is also important that new growth is encouraged, as this will encourage the plant to produce more foliage.

FertilizingDisease prevention is essential for this plant, as it has low water requirements. A regular feed of either blood meal or bloodroot will provide satisfactory results. Feeding only once a week is sufficient, but if the plant experiences a lot of leaf cutting, a high nitrogen fertilizer can be added once a month. If the plant is in poor growing conditions, then it may be best to give the fertilizer a one-time application. An annual feed should be avoided, as it will over feed and harm the plant.

WeedingWith this species being an herb, it will naturally weed, but certain conditions make this more difficult. Grass blades and twigs can clog the root system, which can prevent it from growing altogether. If the preferred grass for the area has not grown for a few years, then it will be best to attempt to weeding the plant. If the lawn is otherwise healthy, the weeding can be left to do its own thing. If the weeding causes the plant to become too weak, then a feed of liquid fertilizer may be required to strengthen the plant.