Project: Environmental Science ❀
Submitted To: Ma’am Irin Martinez
Submitted By: Neikoll Aleja S. Del Mundo
Grade 7 - Einstein
Table of Contents
* Introduction of Pot Marigold/s
* Scientific Name
* Mode of Reproduction
* Benefits to Human and Ecosystem
* By Products
Introduction of Pot Marigold
Pot Marigold is a plant in the genus Calendula of the family Asteraceae. It is probably native to southern Europe, though its long history of cultivation makes its precise origin unknown, and it may possibly be of garden origin. It is also widely naturalised further north in Europe (north to southern England) and elsewhere in warm temperate regions of the world.
It is a short-lived aromatic herbaceous perennial, growing to 80 cm (31 in) tall, with sparsely branched lax or erect stems. The leaves are oblong-lanceolate, 5–17 cm (2–7 in) long, hairy on both sides, and with margins entire or occasionally waved or weakly toothed. The inflorescen-ces are yellow, comprising a thick capitulum or flower head 4–7 cm diameter surrounded by two rows of hairy bracts; in the wild plant they have a single ring of ray florets surrounding the central disc florets. The disc florets are tubular and hermaphrodite, and generally of a more intense orange-yellow colour than the female, tridentate, peripheral ray florets. The flowers may appear all year long where conditions are suitable. The fruit is a thorny curved achene.
[Synonyms include Calendula officinalis var. prolifera. Other recorded English names include ruddles, common marigold, garden marigold, English marigold, and Scottish marigold]
Scientific Name: Calendula Officinalis
Which Climate Do Marigolds Grow In?
Not only do marigolds produce vibrant blooms in colors ranging from a soft cream to an intense orange, they also act as natural insect repellent in your garden. Marigolds will bloom in the early summer and last until the spring frost but only if grown in the right climate.
Temperature and Sunlight
* Marigolds grow best in mild but not hot temperatures. The ideal growing temperature for a marigold plant ranges between 65 and 75 degrees Fahrenheit, but they are comfortable in temperatures as low as 50 degrees Fahrenheit. Marigolds sprout best in full sunlight, meaning they receive at least six hours of direct sun each day. They can tolerate as little as four hours each day. Soil Conditions
* One of the key pieces of climate for marigolds is the soil. Marigolds will only thrive in well-draining soil, meaning that it does not retain moisture for any longer than necessary. Soggy and squishy soil will lead to root rot or fungal growth and will also increase the chance of the marigolds suffering from insect infestations such as spider mites and aphids. When preparing your soil for marigolds, add a few inches of organic and aged manure or compost to increase drainage capabilities. Food and Water
* Marigolds generally get all the water they need from the soil and rainfall, but in times of intense heat or drought they will need your help. Water from the base of the plant in early morning for best absorption results. As long as the soil is good, the marigolds do not need fertilizing. Other Climate Conditions
* If you wait until outdoor temperatures are optimal to plant marigold seeds, you will likely have only a few weeks of bloom. Instead, start seeds indoors about four weeks before the final frost date in your area, and then transplant them when the outdoor temperatures are ideal. Space multiple marigold plants about 15 inches apart, unless you are using a dwarf variety, which can be planted as close as 8 inches apart. Mulch the plants with 2 to 3 inches of organic mulch to help the soil retain moisture and combat weeds.
Varieties of Pot Marigold
The yellow and orange blooms of pot marigolds (Calendula officianalis) brightened Elizabethan England's gardens and contributed...
Please join StudyMode to read the full document