A Step By Step Guide to Growing Very Tall Sunflowers Indeed
Growing Sunflowers is a really fun thing to do – they’re really easy to grow; they grow very fast, which is exciting; they have HUGE flower heads right at the top in summer-y colours of yellow, orange and sometimes red, and you can use the seeds afterwards to feed the birds in winter. So far, so good – HOWEVER, there is a special type of Sunflower that grows very, very tall indeed (we’re talking a Jack and the Beanstalk scenario here) and this is what you have here. (No cow swops required.)
Your mission (if you choose to accept it) is to grow the biggest Sunflower you possibly can by the Autumn Term. All your school friends will be doing the same and there will be Prizes, and possibly a School Feast, at the end of it all.
Sunflowers come from Mexico so you need to create the same conditions in your garden or school grounds for them to do their best here in England. This means finding a spot with lots of sunshine, shelter from the wind (very important) and giving them lots of food and water at intervals while they are growing. (Think Mexican occasional downpour not English daily drizzle.)
Part One – Getting Ready to Plant
Very Important! – Stand back and think things through before you rush into sowing your seeds to give yourself the best chance of success.
1) Finding the Best Place
The very first thing to do is to find the best place for your Sunflower to grow in.
You will need: a notebook; a pencil; a compass; some gardening gloves if you have prickly shrubs. A tape measure (optional).
1. Choose a sunny day, around the end of February onwards, and go out into your garden around midday when the sun is at its highest. Have a really good look round to spot things which will help or hinder your Sunflower from growing tall and strong. Sunflowers have bigger heads in relation to their stalks, which means they can break easily, so they’ll need to be sheltered from the wind. They’ll also need a place where the sun will be directly on them for most, but not all, of the day. (More on this later.)
2. Take out your notebook and mark down the boundaries of your garden (fences, walls, hedges) and draw in any solid buildings (your house, garage, shed as well as those of your neighbours if they’re close to the boundary) as these will cast the strongest shade. Remember that shadows are shorter in summer than they are now (ask your science teacher why) so you may have more choice than you think if your garden is quite small. How much sun is in the garden? Is the garden sheltered from the wind or open to it? Where are the trees, shrubs or big plants in the garden? – they will cast shade too and also compete for food and water if your planting spot is too close to them. Don’t have it close to a pathway or washing line either where people could knock into your growing Sunflower. Mark all these things on your plan.
3. Next step – which way do all these things face? This is where the compass comes in. Hold it in your hand and turn round to find North then mark in the four main compass points at the top of the page in relation to your drawing. This will give you the orientation (look it up) of the garden so you can work out the general direction of the sun and how much of this you are likely to get. Mark in all the compass points of the boundaries, and each side of the buildings, and the shrubs and trees in the flowerbeds. Take measurements and ask your maths teacher about doing this to scale and calculating angles and things if you like to be very accurate. (And lots of people do.) Try and remember from which direction the wind blows most often across the garden and then match this up with your compass points. Winds from the North and East are strong and wintery so your Sunflower will need more protection as it grows; those from the South and West tend to be more gentle and summery.
4. Now then. A fence that runs along the North boundary will look into the garden towards the South so any plants there with their back to the fence will be ‘South-facing’. (The same thing happens with all the other compass points.) A South-facing garden or flower bed will get sun all day. Likewise, a North-facing garden or flowerbed will get very little sun. An East-facing one will get short morning sun and long afternoon shade and a West-facing one will get short morning shade and long afternoon sun. (You get the idea.) Try if possible to find a West-facing spot for your Sunflower – it has very big leaves so it needs some shade for part of the day. (Ask your science teacher to explain ‘transpiration’.
2) Sorting Out the Soil
You will need: a watering can with water in it; a trowel; some of those useful medical gloves.
1. Soil preparation before you start sowing means Really Big sunflowers. Now you’ve found the perfect place you’ll need to find out what sort of soil you’ve got there. Pop on the gloves and then pick up some of the soil and squash it together in your fingers. What does it feel like and how does it crumble? If it feels light and dry and crumbles away easily, you have a thin or poor soil that is going to need a lot of extra compost added to it to feed your Sunflower. If it sticks together very easily and feels cold and heavy this is a clay soil and will need horticultural grit adding to help to drain it. (Not ordinary or builders’ grit, this contains salts which could stop your Sunflower growing tall.) If it feels bulky but lightish, drops in small clumps and smells of growing things, then this is your Goldilocks moment and you have a loamy soil which will be Just Right.
2. To double check your findings, dig a small hole in your chosen spot with a trowel and pour some water in it out of the watering can. If it drains very quickly it’s a poor soil and your Sunflower won’t have time to drink before it’s gone. If the water sits on the top of the hole for quite a while, before reluctantly draining away, it’s a clay soil and your Sunflower doesn’t like to grow in a puddle and will sulk. If it’s a loamy soil then it will drain in quite a natural manner, leaving the soil damp but not waterlogged. This is the sort of thing you’re looking for.
(If you really want to get technical you can ask your science teacher about doing a soil pH test.)
3) Preparing the Planting Hole
You will need: a spade; a grown up (to start with). Some old washing up gloves; a trowel (later on.)
1. Dig a big hole in the spot you’ve chosen on the next sunny day, to at least twice the depth of the metal part of a spade put in it and the same for the width. This can be quite hard work if you’re not used to digging, especially if you have a clay soil, so I suggest getting a grown up to do it instead. You can stand next to them and watch and offer helpful comments such as ‘You’re doing it all wrong.’ You could also ask another grown up to say ‘You might as well dig it a bit deeper while you’re at it,’ when they wander out to look at the progress of the hole. (You might want to go and look at the flowers in another part of the garden when they do this. Or you could stay and learn some new words.)
2. Leave the earth next to the hole in a big pile and start collecting vegetable peelings when whoever does the cooking prepares a meal. (This will also encourage your grown ups to eat in a more healthy way.) Go out every day and put the vegetable peelings in the bottom of the hole and then use the trowel to scatter a layer of earth from the pile on top of the peelings so they’re just covered. This will trap any smells as they rot down and also keep the garden looking tidy. (Very important to grown ups.) After a few days, put on the washing up gloves and use your hands or the trowel to mix everything up together as if you were making a cake. Do this two or three times a week to help speed up the rotting down process. Put a layer of earth on top afterwards to keep it looking neat and tidy.
4) Getting Hold of Supports
You will need: a grown up or perhaps several. Some money. (Probably quite a lot.)
1. The next thing you need to sort out is THREE very long and sturdy stakes to support your Sunflower and help it grow tall and straight. Chestnut is recommended. Don’t let your grown ups try and fob you off with some bamboo canes from the local garden centre – you are growing GIANT Sunflowers, which are going to grow taller than their new kitchen extension and they are going to need Proper Wooden Stakes at least two metres tall for when the wind gets up. They might have thick stalks but Sunflowers are very top heavy and strong winds will snap their stalks or break off their heads.
Very Important!
Don’t let them forget that this is two metres above ground and they need to allow extra for the depth of the planting hole. (When they’re buying your stakes remind them the deeper the stake in the ground the stronger the support above the ground.) However, the taller the stake is, the more expensive it will be. You might want to offer them some of your pocket money if they start getting sticky about this. (Don’t worry, they probably won’t take it but it looks good and shows a Proper Spirit.) You could also remind them that it would be a waste of that weekend digging the hole if it just snaps in the first strong wind because they haven’t bought the right supports. Mention ships and tar (look this up).
You need to hold out for three for as long as you can. If they’re really sticking on this say you’ll accept two. (This is called Negotiation or Getting Your Own Way While Appearing to Give In.) Stand firm on the need for two though. A triangle is best but one each side will be better than just one. Get another grown-up to weigh in on this if you can and then walk away quietly and leave them to it.
Have this argument with them early on in the proceedings, then they can get something in the sales or get a discount for a bulk order by clubbing together with your friends’ grown ups.
2. You will also need gardening twine to tie your Sunflower to the stakes. Proper gardening twine is sturdy but soft and won’t cut into the stalks which could let diseases in. I recommend Nutscene 3-ply twine which you can get in the original invisible green (Nutscene = not seen) which your grown ups will probably prefer you did or one of the different colours.
Once you’ve got all this organised you’ll be all set to start sowing your Giant Sunflower seeds in the middle of March.