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Susan Brigham Passion Flower, Passionvine

Passiflora 'Susan Brigham'

Passifloraceae

Price: $ 14.99
Catalog ID# 11624
In Stock: 0
Container Size: 4.5 inch R / 20 fl.oz. / 591 ml
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Huge pendant rich magenta colored flowers dangle below the rich green smooth tri-lobed foliage of this vigorous hybrid Passion Flower from summer to fall. Susan Brigham Passionvine is a Patrick Worley hybrid in the Tacsonia group named in honor of his mother. The up to 6" wide pendant flowers sport bright yellow anthers. It flowers best in full sun but in hot summer climates it will do best where it receives shade during the heat of the day. Susan Brigham is considered to be self-pollinating by some although most sources suggest it should be cross pollinated by another member of the Tacsonia group in order to produce the large elongated banana-shaped fruit filled with seeds surrounded by tropical tasting orange flesh. As yet it has done well in full sun through our Louisiana summers. The foliage is relished by Gulf Fritillary caterpillars (and most likely by butterflies of the Longwing group as well).

Susan Brigham Passion Flower makes a wonderful choice for growing on an arbor or other similar structure where the pendant flowers can be enjoyed all summer. The naturally evergreen foliage is considered to be frost hardy to about 28oF and possibly into zone 9. A member of the Banana Passionfruit class of Passionfruits.

In order to produce their delicious tangy tropical tasting fruit Passionflowers must be cross-pollinated by another seedling, species, or cultivar. Bumblebees are perfectly designed for this as the pollen is rubbed on their back as they circle the corona drinking nectar and then carry it to the next flower. With most passionflowers the 5 stamens (pollen producing glands) arch downward once they are ready to release their pollen (and nectar) then on the next flower, hopefully, the 3 stigmas will arch downward once they are ready to receive pollen thus doing the work to produce fruit if the pollen is accepted. We generally wait until the fruits become yellow (in yellow fruited cultivars) and wrinkled and have fallen from the vine. To learn more see the Passionfruit datasheet by Purdue Horticulture:https://hort.purdue.edu/newcrop/morton/passionfruit.html#Varieties


Grows To: 12-15'H+, reported to reach 30'

This is the average expected mature height by width in feet or inches. Feet are represented by a single quote and inches by a double quote. Under poor growing conditions plants may be slightly to significantly smaller, whereas excellent growing conditions can produce larger more vigorous plants.


USDA Cold Hardiness Zones: 10,11,(9B?)

USDA Cold Hardiness Zones were established to give gardeners, horticulturists, farmers, nurseries, and landscape architects a universal way to describe where a plant will survive with regard to average winter lows for a region. And these are averages, here in zone 8B ('A' represents the colder half of a zone and 'B' represents the warmer half of the zone and they are separated by about 5oF) we have seen single digits but that is the exception but should be noted by the daring gardener. Each zone is separated by 10oF and the map was updated in 2012. Our zones do not always agree but we try to use our own experience as to what can be depended on to return or have known reputable gardens and or horticulturists to reliably grow that plant in zones that are usually colder but sometimes warmer than what other resources have available. For more on stretching your cold hardiness zones see the "Do you know the many benefits of an organic mulch" below. If you do not know your zone you can find it using the link below.


Click here to find your USDA Cold Hardiness Zone

Outdoor Light: *Full sun, Mostly sunny, Part sun, Part shade

Full Sun - 8 hours or more of direct sunlight; Partial Sun or Partial Shade - 4-6 hours of direct sunlight; AM Sun or Morning Sun or Cool Sunlight - cool sunlight but usually in the shade during the heat of the day; Light Shade - Bright indirect sunlight for much of the day; Filtered Shade - may receive some amount of direct moving sunlight like through trees but usually not for any extended period especially during the heat of the day; Shade - no or very little direct sunlight, especially not during the heat of the day.


Indoor Light: Direct sunlight preferably

Direct Sunlight - preferably 4 or more hours of direct sunlight through an unshaded south, east or west facing window; High Light - may tolerate no direct sunlight but will need very bright indirect light for 4 or more hours; High Indirect Light - bright indirect sunlight for much of the day; Medium Light - bright indirect light for 2-4 hours or more; Low Light - (few plants can do well under very low indoor light levels but some may tolerate it) no direct sunlight with little bright true sunlight filtering into the area; Cool Sunlight or Cool AM(morning) Sunlight - direct sunlight like in an east facing window but not during the heat of the day and will likely also tolerate cool sunlight late in the day, filtered sunlight may also be tolerated.


pH Range: Mildly Acidic, Neutral

Acidic or Strongly Acidic - pH less than 5.5; Mildly Acidic - pH 5.6-6.5; Neutral - pH 6.6-7.3; Mildly Alkaline - pH 7.4-8.4; Alkaline or Strongly Alkaline pH higher than 8.4. Acid loving plants that are grown under alkaline conditions often exhibit nutrient deficiencies since the roots are not able to draw some types of minerals from the soil. Gardenias, for instance, may need to be sprayed with chelated iron. Most plants that are native to alkaline soils can be grown in neutral to mildly acidic soils successfully, although the opposite generally is not true.


Soil & Moisture: Average moist, fertile, well-drained soils. Do not overwater or keep soggy wet for extended periods.

These are the basic soil types and moisture levels where this plant will survive, not necessarily thrive. Drought resistant plants will need to be well-established, usually 2-3 years at a minimum, in the garden or landscape before they are able to withstand lengthy periods (weeks or months) without supplemental water. Most plants will grow and flower and or fruit best where they have ample moisture and nutrients available during the growing season. With that said, many plants, like prairie natives, are quite adaptable to soil types and can thrive in heavy clay as easily as a loose sandy loam.


Do you know the many benefits of a proper organic mulch? Click here to learn more.

A breathable organic mulch is not only aesthetically pleasing (looks nice) but can:

  • Help to improve soil organic matter as it breaks down.
  • Provide shade for the soil to help reduce moisture loss and prevent weed seed germination.
  • Provide soil microbes, mycorrhizae (beneficial fungi), earthworms,and even nematode predators the necessary organic matter and ecosystem to thrive while their actions aid in improving soil tilth and or friability (think of this as the ease with which roots are able to penetrate the soil).
  • Provide insulation to protect the crowns of tender perennials and die-back perennials giving gardeners up to an extra half a zone of winter warmth allowing us to grow that which we normally could not.
  • Provide soil temperature moderation preventing premature soil warming in winter and providing a cooler root zone in summer.
  • So which mulch is our favorite? Our preferred mulch is Longleaf Pine Straw which has: a natural weed preventative for the first year after it is applied; it is sustainably harvested; and it provides protection from soil erosion and doesn't float away, and yet is still both insulative and breathable; while Longleaf Pine Straw appears to last the longest in the garden and landscape in our opinion as compared to Loblolly.


Flowering Period: Late spring to fall

These are the times of the year that you can expect this plant to be in flower. Most of the plants that we ship are already of flowering size and may even be in bud or flower when they are shipped but this cannot be guaranteed. The length of time a plant is able to flower is often based on its size. The more mature or better established a plant is the more resources it has to be able to expend on flowering and fruiting. Some perennials, trees, shrubs, and most vines will need about 3 years of establishment to be large enough to begin to meet their true flowering and or fruiting potential. That does not necessarily mean that they will not flower in the interim but they may not be able to flower for as long a time span. The better the growing conditions like having ample available nutrients and moisture generally equates to quicker establishment and longer flowering periods.


Fertilizing: Once growth commences in spring until about midsummer. High Nitrogen may cause excessive foliar growth in lieu of flowers.

In general, plants will require the most nutrients when in active growth and less when dormant. For indoor plants and tropical plants grown in a warm greenhouse or atrium this may be year round. For winter growing perennials, like Louisiana Iris that go dormant in late summer, this may mean fertilizing in fall and winter. For spring and summer growing perennials, and practically all trees, shrubs, and perennial and woody vines in the garden we generally start fertilizing as early as 6 weeks prior to bud break (about Valentine's Day here in zone 8B in Louisiana) and they can be fertilized up to about 6 weeks prior to the earliest expected hard frost or freeze (about mid-August here in our gardens). This allows for tender new growth, and the entire plant really, to "harden off" prior to what could be potentially damaging temperatures and ultimately causing more harm than good.

One of the most common questions that we get is what fertilizer do you recommend? Obviously it will depend on the particular plant but a good quality, slow-release, non-burning fertilizer is what we prefer. Each time it rains or each time you water your plants are getting fed. Most of these fertilizers are either slowly dissolved or osmotically passed through the outer layer of a pellet. We use Scott's Osmocote© 14-14-14 and 18-6-12 on 99% of the plants that we grow, it is more expensive than some fertilizers but we can depend on the results. DO NOT use common garden fertilizers (like 8-8-8,12-12-12) on acid loving plants as it may contain lime as a filler and so can be deadly to plants like Blueberries, Azaleas, and Camellias.


When to Plant: Once ground temperatures have warmed considerably in spring. Uppot or repot during the growing season.

Preferred planting seasons ranging in order of the most optimum to least optimum times for ease of establishment. Container grown plants, like what we ship, can be successfully transplanted anytime of year as long as proper care is provided. This gives container grown plants an edge on bareroot plants. With that said, there are easier and harder times to establish some plants mainly due to the additional moisture required by the plant during the main growing seasons like spring and summer. If you keep that in mind there is no reason that the great majority of plants can't be added to the garden anytime of year.


Deer Resistance: Not Likely to Be BotheredDeer resistance is relative to how hungry the deer (or other herbivores) are, what food is readily available in their natural habitat, and how tasty a particular plant is. Few plants are truly completely 100% resistant to being browsed by hungry deer and other herbivores. Please realize that this is just a guide based on our experience and research but some plants may never ever be bothered.


Dormant Shipping: Evergreen

Depending on the time of year and the plant's natural rest period or dormant period and when you request your plants to be shipped you may receive plants in full dormancy. Perennials may only be showing buds at or near ground level, have small crowns, or may have no visible above ground plant parts. Rest assured that we have inspected each and every plant that we ship to ensure that it is an established, healthy, and viable established plant. Dormancy is often the easiest time of year to establish reliably hardy perennials, trees, shrubs, and vines as this is the time of year when demand for moisture and nutrients are typically at their lowest and so they need the least amount of TLC from forgetful gardeners. Tropical plants may be shipped in growth year round but if they are grown as die-back or tender perennials, most should not be planted out until your area is passed all danger of freeze and or frost and the ground temperatures have begun to warm significantly in spring.


Native To / Origin: US Gardens - Patrick Worley, CA - circa 1980

If the plant is a true species and not a hybrid or cultivar this shows where it is normally found naturally. There may be some variation in species that are seed grown, which many of our 'species plants' often are, in order to help maintain genetic diversity. If the plant is a "cultivar" (CULTIvated VARiety) and if the data is available, it shows who developed, discovered it, hybridized it, and introduced it as well as the year it was introduced. With cultivars you will also typically see the cultivar name in quotes at the end of the botanical or scientific name. The great majority of cultivars are clonally propagated from division, cuttings, and tissue culture so that they remain true to type so have the same desirable traits as the parent such as growth habit, flower, fruit, or foliage form. With forms (form or forma), varieties (var.), and subforms (subf.) you will see these abbreviations usually between two lower case words at the end of the botanical name. They may be propagated via division or cuttings but can also be grown from seed depending on the plant and what is required to maintain them true to type. Plants that have PPAF(Plant Patent Applied For) or PP followed by a set of numbers, are illegal to propagate clonally for commercial purposes without the implicit permission of the patent holder. Some plants may have the trademark symbol (™) or copyright (©) in the name. These plants may not be clonally propagated and resold under that name without implicit permission from the copyright or trademark holder. Plants may be both patented and trademarked.


This plant may be toxic to humans and/or animals, click here for details

Please be advised that humans and/or animals may have allergic reactions if part(s) of this plant are consumed or by coming into contact with sap from bruised or broken plant parts: With the exception of the sweet and tangy tropical flavored ripe pulp surrounding the dark colored seeds, other plant parts may be toxic if ingested.



Container Plant Growing Guide - includes uppotting, repotting, potting soil selection, proper watering techniques for containers, what does brown or yellow foliage and green soil indicate, and more

See our Planting A New Plant In the Garden or Landscape, How To, and General Growing Guide for basic planting, initial watering and estabishment watering in instructions

The information listed above that has a black arrow symbol,, before the property name is expandable (just click on it anywhere) and it will contain additional details and a more in-depth description of the terms that we use in this plant's description. This information is based on our years of experience both gardening and growing plants, input from other horticulturists, nursery people, gardeners, and research. If you feel we are missing important information about a plant please feel free to share it with us so that we can pass it on.

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