Arduino - Plant Waterer

/*
Halifax Makerspace
Sunday workshop
-----
Moisture sensing plant waterer
*/

bool debug = true;

int led = 13;
int motorPin = 9;
int sensorPin = 0;
int moistureThreshold = 1100;
int pumpOnTime = 1000;
int loopDelay = 3000;

void setup()
{
  pinMode(motorPin, OUTPUT);
  if (debug) {
    pinMode(led, OUTPUT);
    Serial.begin(9600);
    delay(5000);
  }
}

void loop()
{
  int sensorValue = analogRead(sensorPin);
  if (sensorValue >  moistureThreshold)
  {
    if (debug) {
      digitalWrite(led, HIGH);   // Turn on the LED
    }
    digitalWrite(motorPin, HIGH);
    delay(pumpOnTime);
    digitalWrite(motorPin, LOW);
    if (debug) {
      digitalWrite(led, LOW);    // Turn off the LED
    }
  }
  if (debug) {
    Serial.println(sensorValue);
  }
  delay(loopDelay);
}