No common name available Acaena affinis
ABOUT
The plant known most commonly as Biddy-biddy features small, feather-like leaves which typically bear a soft, green hue, occasionally exhibiting hints of a bluish or greyish undertone. These leaves are formally arranged in pinnate fashion—that is, they sprout in rows on either side of the central stem, resembling a feather's structure. In terms of texture, the foliage often appears to have a fine, delicate quality, with a slightly serrated edge that can be seen upon closer inspection. During its flowering season, this plant announces its presence with round flower heads, which can range in a palette of colors, often starting off with subtle greenish-yellow hues before developing into rich reds or purples. The flowers themselves are not particularly large or showy when compared to those of more ostentatious plant species. These flowering globes are followed by the development of barbed seeds, which are arguably one of the plant's most distinctive features. The seeds are typically encased in small burrs that easily cling to animal fur or clothing, which assists in the dispersal of the plant across various landscapes. While the overall shape of the Biddy-biddy is low-growing and mat-forming, it can be noted that the stems are somewhat wiry and can root at the nodes when they come into contact with the soil. This rooting behavior aids in creating dense, ground-covering mats that can spread quite effectively across the area where the plant takes hold. The interconnected spread of stems and leaves forms a dense tapestry, which can be quite pleasing to the eye when observed as a part of grassy meadows or as a component in rock gardens.
About this plant
NamesFamily
Rosaceae
Synonyms
New Zealand Burr
Common names
Acaena affinis is the basic scientific name provided, and based on my current knowledge, there are no known synonyms for this plant. If new synonyms have been identified after my last update, I would not be aware of them.
ToxicityTo humans
Acaena affinis, commonly known as Pirri-pirri bur, is not widely recognized for its toxicity to humans. There is limited information about the plant's poisonous traits to humans, and it is not usually listed among plants causing serious harm upon ingestion. However, as with many plants, individual allergic reactions or sensitivities could occur from handling or accidental ingestion. It is always advisable to exercise caution and avoid eating or using parts of plants not known to be safe for consumption.
To pets
Acaena affinis, also known as Pirri-pirri bur, does not have a well-documented profile of toxicity to pets. There is not much information available about its effects if ingested by pets such as dogs and cats. However, it is generally recommended to prevent pets from eating plants that are not confirmed to be safe, as there could be a potential risk of gastrointestinal upset or other individual reactions. If you suspect your pet has ingested this plant, it is best to consult a veterinarian.
CharacteristicsLife cycle
Perennials
Foliage type
Evergreen
Color of leaves
Green
Flower color
Red
Height
0.5 feet (15 cm)
Spread
1.5 feet (45 cm)
Plant type
Herb
Hardiness zones
6
Native area
New Zealand
Benefits
General Benefits- Erosion control: Acaena affinis, commonly known as Pirri-pirri bur, has a mat-forming growth habit that helps stabilize soil and prevent erosion.
- Ground cover: Its dense growth provides an attractive ground cover that can suppress weeds and cover bare spots in the garden.
- Wildlife habitat: It offers shelter and habitat for a variety of insects and small animals within the garden ecosystem.
- Drought tolerance: Pirri-pirri bur is relatively drought-tolerant once established, making it suitable for low-water gardens.
- Ornamental value: With its unique burr-like seed heads and lush foliage, it adds textural interest to the landscape.
- Low maintenance: It requires minimal care once established, which can save time and effort for gardeners.
- Soil adaptability: Acaena affinis is adaptable to a range of soil types, though it prefers well-drained conditions.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Acaena affinis, commonly known as pirri-pirri bur, can be used as a ground cover in gardens due to its mat-forming habit and can be particularly useful in suppressing weeds.
- The dense carpet of foliage from pirri-pirri bur can help prevent soil erosion on slopes and banks where other plants may struggle to establish.
- The unique burrs of the plant have been known to be used in traditional children's games, where they are thrown to see if they can stick to clothing or fur.
- Pirri-pirri bur seeds can be used for crafting, as their burr nature allows them to adhere to fabrics and can be incorporated into textile art or eco-fashion pieces.
- The plant's tendency to spread quickly and cover ground can be utilised in creating living green roofs on shallow substrates where other plants may not thrive.
- In some areas, Acaena affinis may serve as a food source for specific types of wildlife, such as birds that feed on the seeds.
- The textured foliage and burs offer an interesting tactile experience for sensory gardens, which are designed to stimulate the senses.
- The flowers of pirri-pirri bur can provide a modest source of nectar for small pollinating insects during their blooming season.
- In educational settings, such as schools or botanical gardens, pirri-pirri bur can be used to teach students about plant propagation and invasive species management.
- Some gardeners may use the dried burs of pirri-pirri bur in homemade potpourri mixes, adding an element of texture and visual interest.
Interesting Facts
Feng ShuiThe Acaena is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Acaena is not used in astrology practice.
Plant Symbolism- Perseverance - Acaena affinis, commonly known as "Piripiri" or "Bidibid," has a robust nature and the ability to grow in challenging conditions, symbolizing the strength to persevere through adversity.
- Resilience - The plant's hardy nature and tendency to spread quickly over an area reflects a symbolic significance of resilience, as it bounces back readily from environmental stresses.
- Protection - With its spiky burrs that can stick to animals and people, Piripiri may also symbolize protection, as it uses these burs effectively to safeguard its seeds and ensure propagation.
- Adaptability - The ease with which Piripiri adapts to different soils and environments makes it a symbol of adaptability, representing the ability to thrive in various conditions and situations.
- Connectivity - As the burrs of the Piripiri connect by attaching themselves to moving creatures, it symbolizes connectivity and the idea of spreading influence or ideas from one place to another.
WaterThe Acaena affinis, commonly known as the Bidgee-widgee, prefers soil that is moist but well-drained. Water the plant thoroughly when the top inch of the soil feels dry to the touch. This might translate to watering it approximately once a week, though the frequency should be adjusted depending on the climate and season. During hotter, drier periods, it may require more frequent watering. Generally, provide about a gallon of water every week during the growth season, decreasing the amount as the plant goes into dormancy in cooler weather.
LightBidgee-widgee thrives best in full sun to partial shade. It should be planted in a spot where it can receive at least 4-6 hours of sunlight daily. However, if you are in a particularly hot climate, some afternoon shade can help prevent scorching.
TemperatureThe Bidgee-widgee is tolerant of a range of temperatures but grows best in conditions between 50°F and 75°F. It can survive minimum temperatures down to about 20°F. To thrive, it should be protected from extreme cold and harsh frosts.
PruningPruning Bidgee-widgee is usually done to maintain shape and remove any damaged or dead foliage. Prune in early spring or after flowering to encourage new growth and tidy up the appearance. Trimming is not often needed but can be done annually or as required to keep a neat appearance.
CleaningAs needed
SoilThe New Zealand Burr prefers well-draining, loamy or sandy soil with a pH range from neutral to slightly acidic. A mix containing equal parts garden soil, sand, and peat or compost will create an ideal environment for this plant to thrive.
RepottingThe New Zealand Burr should be repotted every 2-3 years to refresh the soil and encourage healthy growth. Repotting is also a chance to divide the plant if it has outgrown its space.
Humidity & MistingNew Zealand Burr thrives in moderate to high humidity levels but is adaptable to lower humidity conditions commonly found in home environments.
Suitable locationsIndoor
Place New Zealand Burr in bright, indirect light.
Outdoor
Plant New Zealand Burr in partial shade to full sun.
Hardiness zone
6-10 USDA
Life cycleAcaena affinis, commonly known as the Piripiri or Bidgee-widgee, begins its life cycle as a seed, often dispersed by animals or by adhering to fur and clothing. Upon finding suitable moist, well-draining soil, the seed germinates, typically in spring or early summer, developing into a small, prostrate herbaceous plant. The plant then produces pinnate leaves and, under favorable conditions, it forms a carpet-like mat. During its flowering stage in the summer, Acaena affinis produces small, inconspicuous red to brown flowers, which are followed by the characteristic spiny burrs that contain the seeds. Once pollinated, either by wind or insects, the burrs develop seeds that complete the reproductive cycle. As a perennial, Acaena affinis can survive for several years, during which it can spread vegetatively by rooting from the nodes of its trailing stems.
PropogationPropogation time
Spring to summer
Acaena affinis, commonly known as Goose Leaf, can be effectively propagated from seed. To propagate Goose Leaf in this way, collect seeds from the mature plant and sow them in a tray of compost in spring. These seeds should be lightly covered with soil and kept moist but not waterlogged. Germination typically occurs within a few weeks, and once the seedlings are strong enough to handle, they can be transplanted into individual pots. Care should be taken not to disturb the roots too much during transplanting. Seed propagation is the most popular method for Acaena affinis, as it is straightforward and usually results in a good number of viable plants.
