Can shrub hydrangeas be grown indoors? Seed prices, planting and flowering seasons, and methods

Hydrangea is also called eight-immortal flower, powder-ball flower, grass hydrangea, purple hydrangea, and purple sun flower. Its flower form is full, large and beautiful, and its flower color can be red or blue. It is a common potted ornamental flower and tree. So can hydrangeas be grown indoors? How much is a jin of seeds? When to plant and when does it bloom? What are the methods? According to Chaozhou Seed Company, the price of hydrangea seeds is about 60--70 yuan/jin, and the sowing rate per mu is 3--4 jin.

Can hydrangeas be grown indoors?

1. Hydrangea is also a semi-shade plant, so you can absolutely place it indoors. Its stem sap is toxic, while the surface is non-toxic, and most beautiful flowers are toxic. If there are no children at home picking it, there is no problem.

2. Hydrangea easily causes allergies, so it is generally not recommended to place it in the bedroom. It is suggested that flower lovers, when planting flowers, had best suit their own circumstances and choose flowers they like that are harmless. Also, do not plant too many flowers indoors, and be sure to maintain air circulation.

3. The sap of hydrangea is toxic, while the smell is non-toxic, and it itself has no particular scent. It is suitable for placement on a ventilated balcony or terrace, mainly for ornamental purposes.

When are hydrangeas planted and when do they bloom?

Planting:

1. As long as it is not winter, any cold season will do. Warm and hot weather is best for planting. Just cut off hydrangea branches, preferably tender branches, then use loose soil in a flowerpot and keep it moist. After 15 days of cuttings, they will take root. But your flowerpot should be placed in a cool place indoors, and not too shady; it is best if the sun cannot reach it.

2. The cold tolerance of hydrangea is slightly worse than that of rose. When northern flower lovers face temperatures below minus 10 degrees, they must protect the old branches, otherwise the old branches that bloom will be frostbitten, and they will be unable to bloom the next year.

Flowering:

Hydrangea is a climbing shrub, epiphytic on trees or rocks; aerial roots grow at the stem nodes. Leaves are opposite, fleshy, ovate to ovate-oblong, 3.5-12 cm long and 3-4.5 cm wide, with obtuse apex and rounded base; lateral veins are indistinct, about 4 pairs. Cymes are umbel-like, axillary, with about 30 flowers; flowers are white, 2 cm in diameter; corolla is rotate, corolla tube is short, lobes are hairless outside and have many papillate protrusions inside; corona is starlike, outer angles acute, middle ridge elevated, margin recurved forming 1 pore, inner angles acute, erect; pollinia 1 per locule, elongated, with transparent lateral edges. Follicles are linear, smooth, 7.5-10 cm long; seeds have white silky tufts at the apex. Flowering period is April-June, fruiting period is July-August.

What are the planting methods for hydrangeas?

I. Nursery site selection

Hydrangea by nature likes a warm growing environment, is not tolerant of drought or waterlogging, is very sensitive to water, and requires moderate soil moisture. Hydrangea is not cold-tolerant; in winter the aboveground parts wither, the underground roots go dormant, and it grows again the next year. The soil for planting hydrangeas needs good drainage, good air permeability, sufficient fertility, and sufficient light duration. Soil that is slightly acidic is best. Generally, fields used for planting flowers, seedlings, vegetables, and rice can all be used.

II. Land preparation

1. Deep plowing: Hydrangea likes deep, fertile soil and grows poorly in barren land. Land that has long used chemical fertilizers is not suitable for planting. Before planting, clean up weeds, tree roots, and so on from the land, apply 5~8 tons of base fertilizer per mu, about the amount of 2 agricultural tricycle loads, plow deeply for 30 cm, then harrow level. Plowing must be done when soil moisture is moderate so that the plowed land has no large clods of soil.

2. Making beds: For construction-site planting, please arrange the designed terrain well, and it should not be changed after planting. For nursery planting, in order to facilitate future watering, weeding, fertilizing, and so on, the harrowed land should be made into beds of fixed width, preferably 1.5 m wide and 10~35 m long, with the bed head 10 cm higher than the bed tail to help drainage.

III. Sowing

Hydrangea seeds have a relatively strong ability to push through the soil, so a sowing depth of 3~5 cm is appropriate. For greening construction sites and scenic areas, broadcast sowing is mainly used; for nurseries, drilling or dibbling is used. Plant and row spacing depends on actual conditions; for nurseries, 30*50 cm is suggested. After planting, cover with a moisture-retaining plastic film. Generally they sprout in about 10 days. When most seeds have sprouted, remove the plastic film.

IV. Seedling-stage management

During the seedling stage, the main work for hydrangeas is weeding and watering. Seedlings grow relatively fast, but weeds also grow very fast. However, when hydrangea seedlings grow larger, weeds no longer have the chance to grow very big. Another key point is to fertilize twice before and after hydrangea flowering, using 25 kg of compound fertilizer each time, applied by broadcasting before rain or by burying around the roots.