Category Archives: Growing Fruit

Why Are My Kumquat Leaves Yellow?

After making some Kumquat marmalade which was absolutely delicious, I decided to grow my own Kumquat tree.

Kumquats

Kumquats


Kumquats are expensive here in Portugal so planting my own tree seemed the logical step says she, who kills most things including fig trees which are meant to be indestructible.

Fingers firmly crossed I planted a healthy tree in April 2016.

Fast forward four months and the kumquat leaves are yellow but apart from that the tree seems healthy with no leaf fall. At first, I thought it was under-watering, no. Then over-watering, negative.

My kumquat tree has yellow leaves

My kumquat tree has yellow leaves – August 2016

I trawled the internet and the problem appears to be a nutrient deficiency

According to Best Plants

Yellow and dull looking leaves often means the plant is lacking the necessary nutrients magnesium or sulfur. Apply Epsom salt (magnesium sulfate), adding it to fertilizer placed in the soil once per month. For more direct approach, 1 tablespoon can be mixed with a gallon of water and sprayed directly onto the leaves. Be patient as different plants respond faster than others to applications.

This is an excellent website with lots of useful tips.

I then studied various other sites and yellowing of leaves could mean the roots are too wet or too dry, low temperatures, or lack of feeding. I can rule out low temperatures because some days the temperatures have been in the high twenties to mid thirties. Too much water/not enough? It receives no more than my strawberry tubs because it is on the same watering system.

Further investigation reveals it is probably Chlorosis which is used to describe the symptoms of uniform yellowing of leaves.

Kumquat Tree - Chlorosis, uniform yellowing of leaves

Kumquat Tree – Chlorosis, uniform yellowing of leaves

Green chlorophyll requires iron and manganese. Lack of these nutrients result in the yellowing between the leaf veins

So what’s the cure?

According to the Garden of Eaden blog (I won’t include a link to their website as I was bombarded with annoying popups) chlorosis is treated by

spraying leaves with soluble iron foliar feeds every 2 – 4 weeks or by lowering the soil pH.

Or by applying nutrients to the soil surface. Suggested: soluble, acidic plant fertilizers such as Miracid or Sequestration as a weekly liquid feed. As I have neither of the above in store cupboard I am going to try Epsom salts. It’s got to worth a try, yes?

Dosage: Dissolve 2 teaspoons of Epsom Salts to 1 litre of water and apply every fourteen days.

The experiment started today. I sprayed the leaves and watered the plant with the remainder.

All suggestions,tips and advice welcome!

What does recycling and growing strawberries have in common?

With a little creativity it’s amazing what containers you can use to grow strawberries.

I love Strawberries

I love Strawberries

Deep plastic crates prove excellent containers for growing strawberries, lettuce or rocket. Line the crates with black plastic and make holes in the base area to allow for drainage. Add stones, then good quality compost and voilá!

Because the containers are not that deep I do keep the soil moist and once the strawberry plants start to flower I usually water with a liquid feed about ever two weeks. So far so good and I have an abundance of sweet strawberries through the spring and summer months.

I usually buy the strawberry plants from local markets, or if I am being really ‘thrifty’ I repot the strawberry runners from mature plants.

Strawberries also grow well in crates

Strawberries also grow well in crates

Recently, a family of blackbirds discovered my stache of delicious strawberries and were eating them before I had my share. I don’t mind sharing, but they were just plain greedy!

I tried various tactics to deter the birds until I hit on the idea of using …

How to protect your strawberries from the birds

How to protect your strawberries from the birds

Yep you’ve guessed, upturned crates as covers. They not only provided a rigid protective guard they also filtered the strong summer sun which in turn helped with moisture retention.

Happy days!

Do you grow strawberries in unusual containers? Any success, hints or tips?

An Organic Solution for Tomato Blight and Mildew

I am absolutely convinced that gardening in my patch of Portugal is beyond a challenge, or labour of love. Case in point: I’d no sooner tidied the patch and planted up all the vegetable plugs I’d bought from the market when I noticed brown spots on the leaves. Sigh …

Tomato Blight

Tomato Blight

There is NEVER a dull moment!

Searching the net to confirm it was indeed the dreaded blight I discovered various organic treatments; the base ingredient of which was baking soda. What the hell is Portuguese for Baking Soda, I asked myself? Okay, apparently it’s Bicarbonato de Sódio. So tomorrow I’ll be on a mission to buy some!

Yes, you can buy it. It’s located in the ‘baking’ aisle of major supermarkets such as Intermarche and Continent.

Further research also revealed that regularly spraying the plants with the following concoction also helps prevent mildew on squash, courgettes, aubergines and cucumbers etc. Fingers crossed.

Recipe (US)
1 tablespoon of baking powder
1 US gallon of water
1/2 tablespoon vegetable oil (optional)

All the recipes are pretty standard in ingredients but not measures. I discovered (by accident) that UK gallons are different from US. How on earth did I get to xx years old and not realize there was a difference? Ho hum…

1UK gal= 4.546090L
1US gal= 3.78541

So why Bicarbonate of Soda? Apparently, when you spray the leaves with the baking soda solution it lowers the PH on the leaves which in turn helps to prevent the leaf blight spores from growing.

Application: Apply using a sprayer.
When to spray: Early morning or late evening.
What to spray: Leaves (including underside) stems and base /earth round each plant
How often: Daily – weekly. I think this depends on the location and level of humidity. I’ll spray daily and see how it goes.

I found this video and website helpful.

Website: therustedgarden.blogspot

This evening I sprayed the plants just before sunset so the solution does not burn the leaves in the heat of the sun. Hopefully … we will see what tomorrow brings and if further leaves become infected over the next week.

Have you tried using this method? If not, watch this space.