From afar, Qingmei saw that the plums were somewhat similar, but they were not the same as plums. The unripe green plum fruit is green and turns golden yellow when ripe. So, when do green plums mature? In what month do green plums mature?

When do green plums mature?

There is a poem that praises: "In the yellow plum season, every house rains, and green grass ponds are full of frogs." Meiyutian, this poetic name is indeed worthy of its name in such a season. The arrival of such a season means that the green plums begin to mature and be picked. This time is just in late spring, which is around May, so the green plum season is when the plums are not yet mature, which is almost mid to late April.

Characteristics of green plum

Tree with white aromatic resin, about 20 meters high. Branchlets covered with stellate tomentose. Leaves are leathery, entire, oblong to oblong-lanceolate, 5-13 cm long, 2-5 cm wide, apex acuminate or short-pointed, base round or wedge-shaped, 7-12 pairs of lateral veins, both sides protruding , with obvious veins, glabrous or sparsely hairy; petioles 7-15 mm long, densely covered with short gray-yellow hairs.

The panicles are terminal or axillary, 4-8 cm long, slender, covered with silver-gray star-like hairs or scale-like hairs. The calyx has 5 lobes, arranged in a valvate shape, ovate-lanceolate or oblong, unequal in size, about 3 mm long and 2 mm wide, with both sides densely covered with star-like hairs or scale-like hairs; petals, single, white , sometimes light yellow or light red, fragrant, oblong or linear spoon-shaped, about 1 cm long and 4 mm wide, densely hairy on the outside and hairless on the inside; 15 stamens, short filaments of varying lengths, Anthers oblong, septal appendages short and blunt; ovary spherical, densely covered with short tomentose, style short, stigma capitate, 3-lobed. The fruit is spherical; 2 of the enlarged calyx lobes are longer, 3-4 cm long, 1-1.5 cm wide, with a rounded apex and 5 longitudinal veins.

Growth habits of green plums

Green plums are light-loving plants. Timely pruning and shaping will help form a natural open-shaped crown and promote ventilation and light transmission in the crown. Green plums are suitable for warm climates and are relatively cold-tolerant. During the flowering period, they are only affected by freezing at -8°C to -9°C. The cold tolerance of young fruits is weakened and they will be frozen at -3°C to -5°C.

The planting site should be selected with good lighting conditions, no surrounding pollution, and sufficient water sources. The soil of the garden should be deep, fertile, moist, and well-drained. Generally, green plums should be established in a relatively flat mountain nest or halfway up a mountain. base.

The principle of fertilizing young trees is to apply quick-acting fertilizer frequently and thinly. Fertilize fruit-bearing trees three times a year, the first time after fruit picking, the second time before flowering, and the third time during the small fruit stage after flowers fade. Before flowering, sufficient high-quality organic fertilizer should be applied, mainly human and animal manure, cake fertilizer or farmyard manure. This fertilizer should account for 2/3 of the annual fertilizer amount. Apply foliar fertilizers such as potassium dihydrogen phosphate to the roots during the flower bud stage and small fruit stage, and apply an appropriate amount of lime to supplement calcium and neutralize soil pH.