GrowLog
Failed

Spacemaster Cucumber in a Harvest Fails After Nutrient and Growth Problems

Grow log by ERR0R1755 · Original thread

9 visual updates9 photos26 replies
View recap
CropCucumber
VarietySpacemaster
MethodAeroGarden hydroponics
EquipmentAeroGarden Harvest
Plants1
AudienceExperimental

What you can learnA concise failure case connecting low nutrient strength, distorted flowering, and poor cucumber performance in a compact AeroGarden.

Actions:3 Pruning1 Watering1 Nutrients1 Finished
Useful practices
  • thinning to one seedling
  • topping the main stem
  • monitoring roots and nutrient concentration
  • removing dying foliage
Problems encountered
  • weak twisted flowers
  • declining leaves
  • low nutrient concentration
  • unsatisfactory vertical growth

*The days were calculated automatically and approximately.

Day 41
UPDATE#9
Grower update

Update #9

Actions taken

FinishedEnded the cucumber grow because foliage and flowers were deteriorating.

E By ERR0R1755

Ending this today. It is starting to put out sad, twisted flowers and the leaves look horrible. I don't have high hopes for this plant. I think if I try cucumbers again, I'll use a lot of nutes right from the start, since that worked well for my DWC attempt.
Day 37
UPDATE#8
Grower update

Update #8

Actions taken

PruningRemoved a large dying leaf.

E By ERR0R1755

I removed the larger leaf on the left since it started to die off, but I'm not very impressed with this so far. I can see some early signs of flowers under the leaves, however, so I will hold out.
Conversation
F
fldave

Based on the measurements that I take with my cheap TDS meter, my Diva is really sucking down the nutrients even though it is not consuming a lot of water. I recommend feeding based on TDS measurements rather than AG’s standard nutrient dosage schedule. The recommended TDS range for cucumbers is 1190 to 1750 ppm for a mature plant. I have been keeping mine at around half that for it’s first month and it seems to like it so far.

E
ERR0R1755

I try to keep up with my TDS meter, but it got down to 290 PPM when I checked tonight. I added another 7ml of nutes.

Day 32
UPDATE#7
Grower update

Update #7

Actions taken

NutrientsAdded 8 ml of nutrients.

E By ERR0R1755

Added 8ml of nutes. Here is what the roots look like at the moment:
Conversation
S
Shawn

Nice and healthy looking

Day 31
UPDATE#6
Grower update

Update #6

Actions taken

PruningClipped the end of the upper stem to discourage vertical growth.

E By ERR0R1755

It seems to be growing upwards rather than horizontally - I clipped off the end of the top stem today, hopefully that will deter it from reaching for the light.
Conversation
F
fldave

My Diva did a growth spurt into the light overnight after I fed it yesterday too. I do not plan to prune mine but I have a trellis set up behind it that I am going to use to try to manage it. The Bounty that it is planted in will give me two feet of height to play with.

E
ERR0R1755

I might be pushing this a bit with only one foot of height, but I'm hoping I can get it to grow over the sides instead.

U
Unknown

they don't stay under the lights once it begins t vine, and then heads for a wall or the nearest thing to grab onto. Sometimes it will start with grabbing the AG light pole, but then it wanders.Also you may want to keep your eye on those roots in that small reservoir.

Day 23
UPDATE#5
Grower update

Update #5

Actions taken

WateringAdded water once during the grow.

E By ERR0R1755

So far I've only had to add water once.
Conversation
U
Unknown

I am following to see the root density of this plant.Also, does this require pollination?

E
ERR0R1755

It is monoecious, so unfortunately, it does require hand pollination. I haven't tried manually pollinating a plant before, so I wanted to see how much work it would require.

Day 16
UPDATE#4
Grower update

Update #4

E By ERR0R1755

Lots of roots in the base as well.
Conversation
U
Unknown

Nice! One thing I am learning about cuke growing in the AG is that deck space doesn't even have to be considered because the plant trails all over the place anyway. As for roots..my Mini Munch had very little amount of roots, but the current Socrates is a monster and has roots that drink, drink,drink. Anyone tried clipping cuke roots mid project?

E
ERR0R1755

I haven't tried clipping roots, but I've heard from other people that have grown hydroponic cucumbers that you can reduce water usage by removing any lower leaves that are more than half-covered by an upper leaf. They aren't very useful due to being shaded out, but they'll transpire a lot of water as heat builds up in between the leaves.

U
Unknown

I wonder if they are referring to outside hot sunny locations in the summer? The deck gets practically no heat in the AG. Big hoods in a tent for sure. Perhaps I am wrong.

E
ERR0R1755

I've done this before with my pepper and tomato plants in the AG because they've had the same issue, but it might be environmental. If you've ever seen the thing where your leaves get a bit of a "bubbly" texture and it's normally a lighter green and harder than the rest of the leaf, that's normally caused by the heat/moisture trapped between leaves.

U
Unknown

The main problem I have is a yellow ring around the leaf edge, but I see that on all the hydo projects. I wish I knew what to do!

E
ERR0R1755

Added 8ml of nutes!

Day 9
UPDATE#3
Grower update

Update #3

E By ERR0R1755

The first true leaf is coming in!
Conversation
S
Sher

I will enjoy watching this project.

Day 3
UPDATE#2
Grower update

Update #2

E By ERR0R1755

I was worried that the leaves would be stuck together, but they finally opened up:
Day 1
UPDATE#1
Grower update

Update #1

Actions taken

PruningThinned two cucumber seedlings down to one.

E By ERR0R1755

Both seeds sprouted, thinned it down to one:
Conversation
E
ERR0R1755

Added 4ml of nutes to get it started.

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