How Do Tulips Reproduce? Detailed Guide to Propagation Methods and Precautions

Tulips are bulb flowers that are very famous around the world. When tulips are mentioned, many people immediately think they originated in the Netherlands. In fact, tulips originated in our country, but became famous and widely known in the Netherlands, and are now the national flower of the Netherlands. Although not many people grow tulips as potted plants themselves, some flower enthusiasts still want to propagate their own tulips by hand. So how should they be propagated?

Tulips

Tulips are usually propagated mainly by dividing bulbs. In early to mid-June, lift the dormant bulbs, grade them by size and store them, then plant them separately from October to November. Larger bulbs will bloom the following spring, while most smaller bulbs need to continue growing for 1 to 2 more years before they can bloom. Seedlings that have not yet reached blooming size have only one leaf, and when they can produce a second leaf, they are able to bloom.

In hybrid breeding, seed propagation can be used. The seeds do not have dormancy, but germination requires low temperatures. The suitable low temperature is around 5 C; above 10 C germination is delayed, and above 25 C they do not germinate. Under suitable conditions, the germination rate can reach over 90%. After sowing, they can germinate in 40 to 45 days. After germination, the seedlings are kept at 13 C for about 70 days and then moved to 23 C, which can speed up the maturation of the daughter bulbs. In the Nanjing area, if sown in a cold frame outdoors in November, using the natural low temperatures of winter, they germinate in mid-February the following spring. From germination to harvesting the daughter bulbs takes about 135 days. When the aboveground parts go dormant in summer, dig up the small bulbs and store them at 20 C to 25 C, then plant them in autumn. Grown this way, they bloom after 4 to 5 years.

Tulip Cultivation Methods and Precautions

Tulip (scientific name: Tulipa gesneriana) is a famous and precious ornamental flower. Because of its unique flower shape and beautiful colors, it is deeply loved by people in many countries. It is also a flower variety that many flower enthusiasts like to grow.

Key Points of This Article

Disinfectants, tulip bulbs, growing soil

Pre-planting treatment of bulbs:

Before planting newly purchased bulbs, first peel off the skin, then soak and disinfect them with disinfectants such as carbendazim or chlorothalonil. The specific method is: peel off the brown outer skin of the bulb, especially the skin outside the root plate, leaving a white bulb, then dilute disinfectants such as carbendazim, thiophanate-methyl, or chlorothalonil with water according to the usage ratio on the bottle, and soak the bulbs directly in the prepared solution, generally for about 1 to 2 hours. After removing the bulbs, be sure to place them in a shaded, cool place to drain, and note that they must not be exposed to direct sunlight. Once no obvious water droplets are dripping, they can be planted.

Soil treatment:

The soil used for planting should also be disinfected before planting. It can be sprayed and disinfected with a 50-fold dilution of 40% formalin, or covered with plastic film and disinfected by sun exposure. After disinfection, some base fertilizer should also be properly applied to the soil, such as urea, compound fertilizer, and compost. If growing at home individually and no fertilizer is available, small animal manure, as well as yellowed plants and vegetable leaves, can all be buried at the bottom of the pot. If fertilizer is applied, be careful to mix the fertilizer and soil evenly.

Planting:

When planting tulips, make sure the buds face upward, and cover with soil about twice the height of the bulb. After planting, water thoroughly once in time. Within one week after planting, keep the soil moist; the amount of water can be somewhat greater, but there must be no waterlogging, and the soil must drain smoothly. After germination, gradually reduce the amount of water, watering once every 7 to 10 days, following the principle of small amounts and frequent applications. The suitable temperature for tulip growth is 5° to 20°, and the suitable temperature for root growth is 5° to 15°. That is, if planted in winter, keeping the ambient temperature above 5° will allow tulips to grow well.

Late growth stage management:

Tulips like fertilizer. After two leaves have grown, apply a liquid fertilizer once, and thereafter apply it with water about once every 10 to 15 days. Be careful to keep N, P, and K fertilizers balanced when fertilizing. During the vigorous growth period, the amount of fertilizer can be appropriately increased. When the flower buds emerge, appropriately apply some boron fertilizer, which helps the flower buds enlarge and color up.

Common pests and diseases and control methods:

The common pests and diseases of tulips mainly include gray mold, root rot, and blue mold. If the bulbs suffer mechanical damage before planting, blue mold often appears at the wound. Generally, if the bulbs are disinfected before planting, later growth is not affected. When root rot first infects, part of the roots will rot; at this time the impact on the plant is not great, but if the infection is severe, it will cause the flowers to wither. The treatment method is to ensure the soil is fully disinfected, the soil drains well, and the soil temperature is kept below 10°.

Precautions

Disinfecting tulip bulbs before planting is very important.

How to Grow Tulips: Tulip Cultivation Methods and Precautions

Tulips are world-famous bulb flowers and also an excellent cut flower variety. The flowers are upright and vigorous, the leaves are elegant and beautiful, and the lotus-like flowers are dignified and charming, making them lovable. In Europe and America they are regarded as a symbol of victory and beauty, and many countries such as the Netherlands, Iran, and Turkey treasure them as their national flower. Want to know how tulips are grown? Today we will introduce tulip cultivation methods and precautions.

Tulip Cultivation Methods

1. Soil: Tulips require planting soil that both retains water and is airy, with salinity that is not too high and not too acidic. The pH value should be no less than 6. Using peat, decomposed soil, and sand mixed at 1:1:1 as the growing medium gives better results.

2. Sunlight: Adequate sunlight is necessary for tulip growth. Insufficient light will cause poor plant growth, causing bud drop, weakened plants, lighter leaf color, and a shortened flowering period. However, within more than half a month after tulips are potted, they should be properly shaded to help the bulbs develop new roots. In addition, during germination, the elongation of flower buds is inhibited by light; after shading, the elongation of flower buds can be promoted, preventing excessive vegetative growth and legginess in the early stage. After emergence, light should be increased to promote stem elongation, flower bud formation, and coloring. After the flower buds are fully colored in the later stage, direct sunlight should be avoided to prolong the flowering time.

3. Temperature: Tulips prefer warm winters and cool summers, with an optimum growth temperature of 9-13°C. They are highly cold-resistant and can tolerate low temperatures of -35°C in winter.

4. Watering: After planting, water thoroughly so that the soil and bulbs can be fully and closely combined to help rooting. After sprouting, water should be properly controlled. When the leaves gradually extend, water can be sprayed on the leaf surface to increase air humidity. During the flower stalk stage and bud stage, sufficient water supply must be ensured to promote full flower development. After flowering, properly control water.

5. Fertilizing: Tulips do not have high fertilizer requirements. If growth is weak, some nitrogen fertilizer can be applied. After the root system develops well, apply 2 kg of calcium nitrate per 100 square meters, broadcast in three applications with an interval of more than one week each time.

6. Pests: The pathogens of tulip pests and diseases can be carried by the bulbs or infect the bulbs via the soil, and mostly occur in high-temperature and high-humidity environments. The main diseases include stem rot, soft rot, color-breaking disease, damping-off, and blind buds, while the main pest is aphids.

Carry out full soil disinfection before planting, choose virus-free bulbs for cultivation whenever possible, promptly dig out and destroy diseased plants, and apply fungicide once or twice during greenhouse growth for better results; maintain good ventilation to prevent high temperature and high humidity; when aphids occur, spray with 800-fold diluted 3% natural pyrethrin.

Precautions for Tulips

1. Bulb treatment

Before planting newly purchased bulbs, first peel off the skin, then soak and disinfect them with disinfectants such as carbendazim or chlorothalonil. The specific method is: peel off the brown outer skin of the bulb, especially the skin outside the root plate, leaving a white bulb, then dilute disinfectants such as carbendazim, thiophanate-methyl, or chlorothalonil with water according to the usage ratio on the bottle, and soak the bulbs directly in the prepared solution, generally for about 1 to 2 hours. After removing the bulbs, be sure to place them in a shaded, cool place to drain, and note that they must not be exposed to direct sunlight. Once no obvious water droplets are dripping, they can be planted.

2. Tulip seed germination

Tulip seeds prefer low temperatures for germination. Generally, seeds begin to germinate at around 5°C, with 7 to 9°C being best and giving a high germination rate. Above 16°C germination is delayed, and above 25°C they do not germinate. Under suitable conditions, the germination rate is above 90%. If the seeds are cold-stratified at 8 to 10°C for 30 days before sowing, germination is even better. The optimum temperature for seedling growth is 13°C, and afterward it should be kept within 25°C.

3. Flowering period management

After tulip flowers open, do not let the growing soil become too wet or too dry. Fertilizing should be stopped. Keep the environment bright, but avoid overly strong direct sunlight. Avoid high temperatures. Under cool conditions, tulips not only have more brilliant flower colors but also have a longer flowering period. It is best to keep the ambient temperature at 8°C to 12°C. Because tulips like coolness, too high a temperature makes the flowers prone to fading.

4. Room temperature requirements for planting

When tulips are grown under forcing cultivation in a greenhouse in winter, the temperature and humidity of the greenhouse are mainly regulated through ventilation, so that the room maintains stem and leaf growth and bud emergence and flowering

Tulips have rich flower colors and many varieties. They are a common planted flower and are deeply loved by flower enthusiasts. The above introduced tulip planting methods and precautions. The most important thing is the disinfection of bulbs before planting, which can avoid the occurrence of diseases and ensure that tulips bloom on schedule. Hope this is helpful to you.