A Detailed Guide to the Daily Care of Japanese Iris and How It Differs from Sweet Flag

Growing Techniques Jan 1, 1970 0 views

Japanese iris is a perennial aquatic flowering plant, and its flower stems can reach more than 15cm. This article introduces the cultivation methods for Japanese iris so that more people can get to know it. A detailed guide to the daily care of Japanese iris: Japanese iris cultivation methods. Generally, the Japanese iris we see comes in two types: one is planted in water.

A Detailed Guide to the Daily Care of Japanese Iris

1. Japanese iris cultivation methods

Generally, the Japanese iris we see comes in two types: one is planted in water, and the other is planted in soil above the water surface. Under normal conditions, Japanese iris grown in soil is not as good as that grown in water, so cultivation usually chooses wetland sites.

Japanese iris likes a moist environment and has a high demand for water during growth. During cultivation, ensure sufficient light, with light duration controlled at more than 6 hours; provide sufficient air humidity and soil moisture, and fertilize in a timely manner.

2. Japanese iris propagation and care

The propagation of Japanese iris mainly includes three methods: sowing, division, and tissue culture.

Sowing is mainly carried out in spring and autumn. Division can be done in spring, autumn, or after flowering, while tissue culture can be carried out at any time. In today's developed technology, side shoots, leaves, and stem tips are sterilized and then subjected to differentiation culture, which can produce a large number of plants.

3. Japanese iris care and management

Watering and fertilizing:

Japanese iris needs proper watering and fertilizing. Potted plants require more careful management, and fertilizer should not be too concentrated to avoid burning the roots. Field-planted plants are managed relatively extensively, and fertilizing once each in spring and after flowering is sufficient.

Pruning:

After flowering, promptly cut off diseased leaves, residual roots, and flower stems. When repotting or transplanting, cut off the upper part of the plant's leaves, leaving 20cm for transplanting. For some introduced varieties, soak the roots in a rooting agent before planting.

Weeding:

After Japanese iris is planted, many weeds will grow around it, so loosen the soil and remove weeds in a timely manner. Weed when the soil is relatively dry. Pull them out by hand.

Differences from sweet flag

Japanese iris

Japanese iris is a perennial aquatic flowering plant and belongs to the Iridaceae family.

In appearance, the Japanese iris has a thick, short, cylindrical stem and many fibrous roots. Its leaves are linear, with a raised vein in the middle and relatively flat veins on both sides. Its flowers are very large. The three outer petals are elliptical and gradually transition to obovate, and the middle part of the flower has yellow spots and purple veins. The flower color ranges from white to dark purple, with great variation in spots and patterns.

The flowering period of Japanese iris is generally from June to July.

Japanese iris prefers a moist and warm environment and needs fertile, moist soil. It mostly grows in swamps or on wet riversides.

Sweet flag

Sweet flag is a perennial herbaceous plant. In appearance, its stem is thick and strong, grows horizontally, and branches, with a yellowish-brown exterior. Its leaves are sword-shaped and linear, with a raised vein in the middle.

The color of sweet flag is green and glossy. Its flowers are yellow-green, and the flowering period is from June to September in late summer and early autumn, lasting four months.

Sweet flag prefers to grow in swamps or by floating islands at the edges of lakes. It likes a warm and humid climate, and in winter it sinks its stem into the mud to overwinter.