Mexican Feather Grass (Stipa tenuissima) ‘Pony Tails’ is an exceptionally elegant and airy ornamental grass, which brings dynamism and soft texture to the garden. It forms dense and graceful clumps, approximately 75 cm in height, which move with even the slightest breeze, creating a lively and soothing sight in the garden. The plant’s silky, thread-like leaves and fluffy, light-colored inflorescences resemble a ponytail, which is where the variety’s name comes from.
This grass is an excellent choice for modern landscaping, fitting perfectly along borders, in rock gardens, or in spacious planters on the terrace. ‘Pony Tails’ harmonizes wonderfully with colorful annuals and perennials, balancing their bright tones with its neutral and soft appearance. As it is a frost-sensitive plant in the Estonian climate, it is mostly grown here as an annual.
Usage and Cultivation Instructions:
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Sowing time: For indoor pre-cultivation in March or April.
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Sowing depth: Seeds require light to germinate, so only press them lightly onto the surface of moist seed-starting soil; do not cover with a thick layer of soil.
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Planting: Move young plants outdoors and plant them in their permanent location only after the danger of spring night frosts has passed (usually late May or early June).
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Growing location: Prefers a full sun and warm location. Soil should be light, well-draining, and rather dry (sandy soil is ideal). Avoid excessive moisture.
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Plant spacing: When planting in groups, leave about 30–40 cm between plants.
Tips and recommendations:
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Mexican Feather Grass looks most effective when planted in larger groups or masses, allowing the wind to play between the plants and creating a waving sea effect.
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In pot and container gardening, be sure to use a proper drainage layer at the bottom (e.g., expanded clay pebbles) to prevent excess water accumulation, which can damage the plant’s roots.
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Although the plant is frost-sensitive, in milder winters and well-drained locations under thick winter cover, you may attempt to overwinter it. In case of successful overwintering, cut back old leaves heavily in spring before new growth begins.