Among numerous sunflower ( helianthus annuus)varieties , the ginormous Mammoth is a delight . Not only is it easy to grow , but the sheer size of this radiant blossom towering viewgraph strikes fear into looker-on below . Keep reading , and we will divvy up with you how to good like for the gigantic helianthus to love tremendous resultant role in your garden or landscape .
What is the Mammoth Sunflower?
gigantic orRussian Mammothis a tall variety , single stem helianthus that was developed in Russia during the18th hundred . It was historically educate for oil , produce a higher oil yield than other sunflower varieties . Today ’s gigantic sunflower seeds have been hybridized mainly for agricultural purposes , to meet increase worldwidedemand for sunflower crude oil .
Both gigantic Second Earl Grey grade insignia and Russian gigantic varieties produce similarity sized plant with endearing , cosmetic flowers and comestible seeds . Sturdy , bright green stems of gigantic helianthus spring up to heights between 9 - feet and 12 - feet tall . unsubtle , nitty-gritty - mould leave decorate the stems . Massive , 20 - inch blossom heads atop have a daisy - like , upbeat inclination with bright yellowed petals encircling a brownish center .
How to Grow Mammoth Sunflowers?
Mammoth sunflowers are annual plant typically seed from seminal fluid that flourish outdoors in USDA Plant Hardiness Zones 2 - 11 . Stimulate optimum increase by bring home the bacon ideal growing conditions :
Soil
sunflower are not particular about soil type , as long as it is not too compact for the taproot to bottom easy . gigantic sunflower taproots can grow down as far as 4 - feet deep . Loamy to flaxen , well - draining ground are most accommodating .
Mammoth helianthus are happy with a dirt pH of 6.0 to 7.5 .
Sunlight
As you may have suppose , mammoth helianthus do prefer full sun . place these flowers where they will get six to eight hours of verbatim sunlight day by day .
Water
Water regularly . Provide several gallons of H2O per week , by watering deeply to quench the taproot .
Fertilizer
Mammoth helianthus necessitate nutrients because they are tight - grow plants . For best results , treat the soil with composted manure , or either slow - releasing granular or dilute fluid fertilizer .
Extra Support
Because they are so large and reasonably top - heavy , gigantic sunflowers might need the additional supporting provided by staking the stem .
Mammoth helianthus are susceptible to wind terms , so taste to place these plants in an area where they will be sheltered from the flatus , such as alongside a fencing , rampart , or natural shelterbelt .
Planting Step-by-step
Plant gigantic sunflowers during late spring , after the first rime , has occurred , and the soil temperature reaches 50 degrees Fahrenheit or heater . To maximize efflorescence throughout the season , you’re able to plant sunflowers in succession typically throughout May and mid - July .
Ideal space for mammoth helianthus is20 - inches apart ; institute in row 30 - inches apart . For best results , you might need to sow multiple seed in a cluster ( each 6 - inches aside ) and slim the seedlings as they produce . By thinning the seedling , you may select the hardiest sunflower . start out cut seedlings at 3 - column inch , then again at 1 - foot , and finally 2 - foot tall .
Harvesting Sunflower Seeds
Either tender or roasted , sunflower seeds make a delicious , healthy collation . you’re able to also preserve the seeds for next year ’s planting , or use dried seed as bird feed . When the prime question wilts and the foliage turns yellow , the sunflower isready for harvest .
OR
wonder if you could mature sunflower in a container ? you’re able to ! Find out how by reading our blog , “ Can You spring up Sunflowers in a Pot ? ”
Sunflower Photo Gallery
Gentle Giants
gigantic sunflowers favor to maturate in a localization that is protect from the wind . They make a adorable backdrop to blot out a fence or paries .
Sneak Peek
Depending on the multifariousness , tight - grow sunflower will flower between 80 and 120 mean solar day after sow seed . savor these brilliant peak all summer long by planting sunflowers in succession .
Sun Worshippers
Sunflowers are heliotropic , meaning they turn their flower heads to follow the sun . scientist believe thiscircadian rhythmhelps young stems to grow potent , to stick out heavy - laden mature flower read/write head .
Sunny Smile (Sunspot)
If you desire that classic , gigantic helianthus look without the tremendous size , judge thesunny smilevariety . Although miniature ( 6 ” - 20 ” tall ) , this sunflower boats big beauty with yellow flower petal and a sheer brown center .
Attract Wildlife
helianthus pull in wildlife to your backyard . Butterflies and bees are attracted to the bloom ’ pollen . skirt , squirrels , cervid , and cony also like to munch on these tasty plants .
Record-breaking Dimensions
Mammoth sunflowers produce a massive head tramp from 15 - column inch to 20 - inches in diam . Just imagine the flower size of it of German gardener , Hans - Peter Shiffer’sworld disc , tallest helianthus get at 30 - infantry , 1 - inch tall .
Sprouting Seeds
gigantic sunflower seeds sprout within 5 to 10 days after plant . It is best to imbed seeds directly into the soil but to give sunflowers a oral sex get down for short rise seasons , you could start seedling indoors .
Photo Opportunity
Here we see a picture - perfect field of flower sunflowers , an excellent backcloth for a family photo . helianthus are grown agriculturally , preponderantly across the mid - west , as a rotation craw to help keep treasured nutrient in the soil .
Branching Beauties
Branching sunflower varieties produce several bloom during the maturate season . Because various people of colour and sizes are available , furcate variety make a lovely option for growing bouquet flowers .
A position partake by Priyanka Chopra Jonas ( @priyankachopra )
Child’s Garden
Capture small fry ’s interest in gardening by planting mammoth sunflower . child will wonder at the sunflower ’s power to outgrow them by mid - summer , a great incentive to care for grow plants .
Gorgeous Shade-cover
Towering sunflower variety show likesunzilla , titan , andskyscrapercan grow between 12 - substructure and 16 - pes magniloquent . Here we see tall assortment sunflowers shade a easy seance area .
Geometric Design
educate seed at the center of sunflowers intricately twist into mingy - knit , spiral , and circular patterns .
Striped Seeds
vary seeds of mammoth sunflower varieties are pitch-black and white striped . The prominent appearance looks too pretty to eat !
Wilting Flowers
Wilting sunflowers are intimately ready to harvest . Wait for the flower petal to drop and leaf to yellow before cutting mammoth flower heads .
Complimentary Landscaping
Brilliant color and ginormous stature not only make the sunflower a focal stop , but here we see how the blooms complement the trim on this mansion to coordinate base and garden graciously .
Where to Buy Mammoth Sunflowers Online?
store online to have gigantic helianthus source shipped directly to your door , and you will be quick for planting this spring .
Burpee
You will have a 100 % atonement vouch when you buy mammoth sunflower seed from Burpee ; 150 heirloom seeds per packet .
flick here to order from Burpee .
Amazon
maturate mammoth Zane Grey stripe sunflowers from David ’s Garden Seeds available on Amazon ; package of 50 heirloom come .
Click here to find this on Amazon .
Plant Sow Right Seeds to savour Russian mammoth sunflowers in your backyard ; useable on Amazon , 8 - gramme packet of heirloom seeds .
Walmart
Mammoth grey stripe sunflower seeds from Mountain Valley Seed Company develop to tremendous heights , uncommitted at Walmart , 8 - gram packet boat of heirloom seeds .
Click here to find this at Walmart .
Now that you know how to care for mammoth sunflowers , you could regularize your seeds , and while you ’re waiting , learn out our web log , “ What ’s the Best Time to Plant Sunflowers ? ” for even more detail about planting sunflowers .
