The Maypop Passionvine or Passion Flower produces a summer long display of 2-3" wide white, lavender, and purple exotic flowers that are held against medium green tropical foliage. Pollinated flowers are followed by round passion fruit that ripen to yellow and contain a tangy tropical tasting clear flesh that surrounds each of the small black inedible seeds. This easy to grow perennial native vine can grow to 15-18' each year if given a suitable support but it is also happy to clamber along a fence, trellis, or any other support that it can grasp with its strong tendrils. Provide a well-drained soil and a full to mostly sunny position for the best results. See the below information for more on growing Passionvines as perennials.
The Maypop is the caterpillar host for the Gulf Fritillary and other members of the Longwing family as well as the Variegated Fritillary. This makes this a great plant for children to enjoy as the multitudes of often alien looking caterpillars are sure to pique their interest. One of the hardiest of passion vines the Maypop is native well into the central portion of the US reaching Illinois, Indiana, Ohio. The round fruit 'may pop' when you step on them giving this beautiful native passion flower its name.
Passionvines are tropical plants that we are often able to grow and enjoy as die-back perennials in areas where winter brings freezing temperatures and some can even remain evergreen in mild winters in zone 8B. *Note: To help give them the best chance of returning in the ground they should be planted as early in the growing season as possible in order for them to be able to establish a strong root system and well-established crown from which they can return the following spring. A breathable insulative protective mulch, like pine straw, will also help to improve their chances of returning. Containerized Passionvines are susceptible to the soil freezing and could be killed by it anywhere temperatures remain below 32oF for any real length of time and so may need to be brought indoors or grown in a greenhouse during cold spells. Some of the hardiest and most reliable species to look for are Blue Crown Passionvine, Passiflora caerulea, and its cultivars like Bahama Blue, Clear Sky, and Constance Elliot (these may remain evergreen even with dips into the 20oF's for short periods); Maypop Passionvine, Passiflora incarnata; and the Yellow Passionvine, Passiflora lutea. Even though these last two are considered root hardy into zones 5 and 6 they still need to be established as early in the growing season as possible. They both typically will go completely dormant in fall and winter. Other cultivars that have impressed us with their ability to return here in zone 8 are Lady Margaret (may return from the roots even in 8A ) and Aphrodite's Purple Nightie (like Blue Crown, we have seen it remain evergreen into the 20oF's for short periods).
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
The Maypop is also known as: Purple Passionflower, Purple Passionvine, and Apricot Vine.
Grows To: 15-20'H
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: *6,*7,*8,9,10,11
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, 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.
pH Range: Acidic, Mildly Acidic, Neutral, Mildly Alkaline
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 to somewhat dry soils.
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.
Salt Tolerance: Moderate
The salt tolerance of plants is a relative description of how tolerant they are to windborne or aerosol and soil borne salt levels. Many plants can tolerate seaside and other coastal habitats or roadsides where deicing has occurred wonderfully while others may die or can simply survive and suffer along. If this does not say specifically that a plant is resistant to windborne or aerosol salts then we simply do not have that data available at this time.
Native To / Origin: US
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.
View this species in the USDA Plants database
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.