Phoenix dactylifera - Date Palm

The Phoenix dactylifera, better known as the date palm, has been cultivated for millennia in North Africa and the Middle East for date harvesting. With its exemplary sobriety, this Phoenix is also quite hardy, which allows it to be acclimated in many regions not for its fruits, which only form in very hot climates, but as an ornamental tree. It is recognized by its characteristic silhouette, composed of a long slightly curved "trunk" at the base, adorned with a beautiful braided pattern, topped with a crown of rather rigid palmate leaves, as well as its ability to sprout from the stump to form small clusters of trees.

The Phoenix dactylifera belongs to the large family of Arecaceae. It is probably native to a region that would correspond to present-day Iraq, but has long been cultivated for fruit production in the Arabian Peninsula and North Africa, the Middle East, and as far as India. This palm tree has been introduced to California and is now widely planted in Texas in the Las Vegas region and southwest Arizona. The date palm tolerates drought well, withstands cold temperatures down to -10°C (14°F), tolerates slightly acidic or alkaline soils, and salt spray. It does, however, require warmth and a deep, light, preferably sandy, and well-drained soil. In favorable climate and soil conditions, the plant can reach a height of 30m (98ft). In cultivation in our gardens, it will remain smaller in size. The growth of this palm tree is slow.

Unlike the Phoenix canariensis, which is more commonly planted in gardens, the Phoenix dactylifera is capable of forming multiple stems, or false trunks, from its base. Each stem is slender (up to 30cm (12in) in diameter), of a warm brown color, and covered with short fibers and a pattern of prominent diamonds, consisting of remnants of the cut petioles. This date palm also produces adventitious roots at the base of its stem, contributing to a notable widening. The root system is dense and highly developed, capable of reaching water at a depth of 6m (20ft).

At the top of each stem, the foliage develops, assembled into a fairly sparse crown. It consists of 30 to 50 leaves or palm fronds shaped like fish ribs, ranging in length from 4 to 7m (13 to 23ft). Persistent in winter, these leaves have an individual lifespan of 3 to 7 years. Each leaf is divided into 200 to 250 rigid pinnae, green-blue in color, irregularly arranged along the central vein. Flowering occurs in summer, on mature plants. The Phoenix dactylifera is a dioecious species, meaning that there are male and female plants. Only the female plants will bear dates in the presence of male plants. To produce quality fruits, the date palm requires a temperature of around 30°C (86°F), low atmospheric humidity, reduced rainfall, and deep, cool soil. Conditions that can be found in oasis areas in sub-desert zones. In less favourable conditions, it does not produce or produces very few and of mediocre quality dates. The female plants produce clusters of fleshy and sweet fruits that contain an elongated seed with a furrow.

The Phoenix dactylifera is a mythical palm tree that can be a magnificent feature in many gardens. As it requires space to express its beauty, this palm tree can be planted individually on a lawn or in rows in not too cold climates, both by the sea and inland. Extensively cultivated around the Mediterranean basin, it is increasingly popular among landscape professionals as well as amateur gardeners who appreciate exotic yet hardy plants, especially on the Atlantic coast where it also seems to thrive. It can sometimes be difficult to pair with other plants due to its strong personality; reserve a corner of a pool for it and plant small evergreen shrubs like bush sage, teucrium, simple and floriferous. Graphic, sober, and colorful phormiums, precise and geometric agaves, the almost metallic Astelia chathamica, the orange Hakonechloa macra Aureola in autumn, and the violet and delicate Verveine de Buenos Aires will accompany it in a bed that is both exotic and easy to maintain.